Home / 286,128.64-429,192.96-89,152

Finding the Fourth Proportional to 286,128.64, 429,192.96 and 89,152

Calculator

Solution

The fourth proportional to 286,128.64, 429,192.96 and 89,152 is: 133,728

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,128.64 : 429,192.96 = 89,152 : x
  2. Step 2: Convert to fraction form
    286,128.64/429,192.96 = 89,152/x
  3. Step 3: Cross multiply
    286,128.64x = 429,192.96 × 89,152
  4. Step 4: Simplify right side
    286,128.64x = 38,263,410,769.92
  5. Step 5: Solve for x
    x = 38,263,410,769.92/286,128.64
  6. Step 6: Final answer
    x = 133,728

Related Problems

Find fourth proportional to 143,064.32, 214,596.48 and 44,576
Half scale
Find fourth proportional to 572,257.28, 858,385.92 and 178,304
Double scale
Find fourth proportional to 286,129.64, 429,194.46 and 89,153
Similar ratio
Find fourth proportional to 429,192.96, 643,789.44 and 133,728
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.