Home / 156,265.40-215,646.05-84,645.71

Finding the Fourth Proportional to 156,265.40, 215,646.05 and 84,645.71

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Solution

The fourth proportional to 156,265.40, 215,646.05 and 84,645.71 is: 116,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,265.40 : 215,646.05 = 84,645.71 : x
  2. Step 2: Convert to fraction form
    156,265.40/215,646.05 = 84,645.71/x
  3. Step 3: Cross multiply
    156,265.40x = 215,646.05 × 84,645.71
  4. Step 4: Simplify right side
    156,265.40x = 18,253,513,010.95
  5. Step 5: Solve for x
    x = 18,253,513,010.95/156,265.40
  6. Step 6: Final answer
    x = 116,810.97

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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.