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Finding the Fourth Proportional to 101,844, 140,545.68 and 57,132.96

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Solution

The fourth proportional to 101,844, 140,545.68 and 57,132.96 is: 78,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,844 : 140,545.68 = 57,132.96 : x
  2. Step 2: Convert to fraction form
    101,844/140,545.68 = 57,132.96/x
  3. Step 3: Cross multiply
    101,844x = 140,545.68 × 57,132.96
  4. Step 4: Simplify right side
    101,844x = 8,029,790,713.61
  5. Step 5: Solve for x
    x = 8,029,790,713.61/101,844
  6. Step 6: Final answer
    x = 78,844.02

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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.