Home / 120,089.43-165,726.53-66,375.29

Finding the Fourth Proportional to 120,089.43, 165,726.53 and 66,375.29

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Solution

The fourth proportional to 120,089.43, 165,726.53 and 66,375.29 is: 91,599.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,089.43 : 165,726.53 = 66,375.29 : x
  2. Step 2: Convert to fraction form
    120,089.43/165,726.53 = 66,375.29/x
  3. Step 3: Cross multiply
    120,089.43x = 165,726.53 × 66,375.29
  4. Step 4: Simplify right side
    120,089.43x = 11,000,146,489.44
  5. Step 5: Solve for x
    x = 11,000,146,489.44/120,089.43
  6. Step 6: Final answer
    x = 91,599.62

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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.