Home / 138,781.44-208,200.96-55,681.92

Finding the Fourth Proportional to 138,781.44, 208,200.96 and 55,681.92

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Solution

The fourth proportional to 138,781.44, 208,200.96 and 55,681.92 is: 83,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,781.44 : 208,200.96 = 55,681.92 : x
  2. Step 2: Convert to fraction form
    138,781.44/208,200.96 = 55,681.92/x
  3. Step 3: Cross multiply
    138,781.44x = 208,200.96 × 55,681.92
  4. Step 4: Simplify right side
    138,781.44x = 11,593,029,198.64
  5. Step 5: Solve for x
    x = 11,593,029,198.64/138,781.44
  6. Step 6: Final answer
    x = 83,534.44

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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.