Home / 119,854.97-165,330.02-76,819.13

Finding the Fourth Proportional to 119,854.97, 165,330.02 and 76,819.13

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Solution

The fourth proportional to 119,854.97, 165,330.02 and 76,819.13 is: 105,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,854.97 : 165,330.02 = 76,819.13 : x
  2. Step 2: Convert to fraction form
    119,854.97/165,330.02 = 76,819.13/x
  3. Step 3: Cross multiply
    119,854.97x = 165,330.02 × 76,819.13
  4. Step 4: Simplify right side
    119,854.97x = 12,700,508,299.28
  5. Step 5: Solve for x
    x = 12,700,508,299.28/119,854.97
  6. Step 6: Final answer
    x = 105,965.64

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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.