Home / 119,721.56-165,216.92-66,008.70

Finding the Fourth Proportional to 119,721.56, 165,216.92 and 66,008.70

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Solution

The fourth proportional to 119,721.56, 165,216.92 and 66,008.70 is: 91,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,721.56 : 165,216.92 = 66,008.70 : x
  2. Step 2: Convert to fraction form
    119,721.56/165,216.92 = 66,008.70/x
  3. Step 3: Cross multiply
    119,721.56x = 165,216.92 × 66,008.70
  4. Step 4: Simplify right side
    119,721.56x = 10,905,753,777.16
  5. Step 5: Solve for x
    x = 10,905,753,777.16/119,721.56
  6. Step 6: Final answer
    x = 91,092.65

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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.