Home / 113,503.11-156,610.53-65,753.61

Finding the Fourth Proportional to 113,503.11, 156,610.53 and 65,753.61

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Solution

The fourth proportional to 113,503.11, 156,610.53 and 65,753.61 is: 90,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,503.11 : 156,610.53 = 65,753.61 : x
  2. Step 2: Convert to fraction form
    113,503.11/156,610.53 = 65,753.61/x
  3. Step 3: Cross multiply
    113,503.11x = 156,610.53 × 65,753.61
  4. Step 4: Simplify right side
    113,503.11x = 10,297,707,711.51
  5. Step 5: Solve for x
    x = 10,297,707,711.51/113,503.11
  6. Step 6: Final answer
    x = 90,726.22

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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.