Home / 123,835.36-170,903.44-70,129.84

Finding the Fourth Proportional to 123,835.36, 170,903.44 and 70,129.84

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Solution

The fourth proportional to 123,835.36, 170,903.44 and 70,129.84 is: 96,785.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,835.36 : 170,903.44 = 70,129.84 : x
  2. Step 2: Convert to fraction form
    123,835.36/170,903.44 = 70,129.84/x
  3. Step 3: Cross multiply
    123,835.36x = 170,903.44 × 70,129.84
  4. Step 4: Simplify right side
    123,835.36x = 11,985,430,902.65
  5. Step 5: Solve for x
    x = 11,985,430,902.65/123,835.36
  6. Step 6: Final answer
    x = 96,785.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.