Home / 109,726.70-151,435.18-61,983.13

Finding the Fourth Proportional to 109,726.70, 151,435.18 and 61,983.13

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Solution

The fourth proportional to 109,726.70, 151,435.18 and 61,983.13 is: 85,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726.70 : 151,435.18 = 61,983.13 : x
  2. Step 2: Convert to fraction form
    109,726.70/151,435.18 = 61,983.13/x
  3. Step 3: Cross multiply
    109,726.70x = 151,435.18 × 61,983.13
  4. Step 4: Simplify right side
    109,726.70x = 9,386,425,914.97
  5. Step 5: Solve for x
    x = 9,386,425,914.97/109,726.70
  6. Step 6: Final answer
    x = 85,543.68

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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.