Home / 138,884.26-208,331.52-71,398.22

Finding the Fourth Proportional to 138,884.26, 208,331.52 and 71,398.22

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Solution

The fourth proportional to 138,884.26, 208,331.52 and 71,398.22 is: 107,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,884.26 : 208,331.52 = 71,398.22 : x
  2. Step 2: Convert to fraction form
    138,884.26/208,331.52 = 71,398.22/x
  3. Step 3: Cross multiply
    138,884.26x = 208,331.52 × 71,398.22
  4. Step 4: Simplify right side
    138,884.26x = 14,874,499,697.89
  5. Step 5: Solve for x
    x = 14,874,499,697.89/138,884.26
  6. Step 6: Final answer
    x = 107,099.97

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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.