Home / 119,933.28-165,503.64-66,217.20

Finding the Fourth Proportional to 119,933.28, 165,503.64 and 66,217.20

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Solution

The fourth proportional to 119,933.28, 165,503.64 and 66,217.20 is: 91,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,933.28 : 165,503.64 = 66,217.20 : x
  2. Step 2: Convert to fraction form
    119,933.28/165,503.64 = 66,217.20/x
  3. Step 3: Cross multiply
    119,933.28x = 165,503.64 × 66,217.20
  4. Step 4: Simplify right side
    119,933.28x = 10,959,187,630.61
  5. Step 5: Solve for x
    x = 10,959,187,630.61/119,933.28
  6. Step 6: Final answer
    x = 91,377.37

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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.