Home / 112,285.44-168,516.15-78,330.60

Finding the Fourth Proportional to 112,285.44, 168,516.15 and 78,330.60

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Solution

The fourth proportional to 112,285.44, 168,516.15 and 78,330.60 is: 117,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,285.44 : 168,516.15 = 78,330.60 : x
  2. Step 2: Convert to fraction form
    112,285.44/168,516.15 = 78,330.60/x
  3. Step 3: Cross multiply
    112,285.44x = 168,516.15 × 78,330.60
  4. Step 4: Simplify right side
    112,285.44x = 13,199,971,139.19
  5. Step 5: Solve for x
    x = 13,199,971,139.19/112,285.44
  6. Step 6: Final answer
    x = 117,557.28

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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.