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Finding the Fourth Proportional to 138,796.66, 208,259.52 and 44,041.78

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Solution

The fourth proportional to 138,796.66, 208,259.52 and 44,041.78 is: 66,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,796.66 : 208,259.52 = 44,041.78 : x
  2. Step 2: Convert to fraction form
    138,796.66/208,259.52 = 44,041.78/x
  3. Step 3: Cross multiply
    138,796.66x = 208,259.52 × 44,041.78
  4. Step 4: Simplify right side
    138,796.66x = 9,172,119,962.75
  5. Step 5: Solve for x
    x = 9,172,119,962.75/138,796.66
  6. Step 6: Final answer
    x = 66,083.15

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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.