Home / 138,999.72-208,489.26-44,226.12

Finding the Fourth Proportional to 138,999.72, 208,489.26 and 44,226.12

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Solution

The fourth proportional to 138,999.72, 208,489.26 and 44,226.12 is: 66,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,999.72 : 208,489.26 = 44,226.12 : x
  2. Step 2: Convert to fraction form
    138,999.72/208,489.26 = 44,226.12/x
  3. Step 3: Cross multiply
    138,999.72x = 208,489.26 × 44,226.12
  4. Step 4: Simplify right side
    138,999.72x = 9,220,671,031.47
  5. Step 5: Solve for x
    x = 9,220,671,031.47/138,999.72
  6. Step 6: Final answer
    x = 66,335.90

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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.