Home / 119,909.28-165,470.47-66,193.15

Finding the Fourth Proportional to 119,909.28, 165,470.47 and 66,193.15

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Solution

The fourth proportional to 119,909.28, 165,470.47 and 66,193.15 is: 91,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,909.28 : 165,470.47 = 66,193.15 : x
  2. Step 2: Convert to fraction form
    119,909.28/165,470.47 = 66,193.15/x
  3. Step 3: Cross multiply
    119,909.28x = 165,470.47 × 66,193.15
  4. Step 4: Simplify right side
    119,909.28x = 10,953,011,434.46
  5. Step 5: Solve for x
    x = 10,953,011,434.46/119,909.28
  6. Step 6: Final answer
    x = 91,344.15

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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.