Home / 138,839.50-208,092.48-63,856.42

Finding the Fourth Proportional to 138,839.50, 208,092.48 and 63,856.42

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Solution

The fourth proportional to 138,839.50, 208,092.48 and 63,856.42 is: 95,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,839.50 : 208,092.48 = 63,856.42 : x
  2. Step 2: Convert to fraction form
    138,839.50/208,092.48 = 63,856.42/x
  3. Step 3: Cross multiply
    138,839.50x = 208,092.48 × 63,856.42
  4. Step 4: Simplify right side
    138,839.50x = 13,288,040,801.72
  5. Step 5: Solve for x
    x = 13,288,040,801.72/138,839.50
  6. Step 6: Final answer
    x = 95,707.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.