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Finding the Fourth Proportional to 138,189.84, 207,291.24 and 44,702.88

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Solution

The fourth proportional to 138,189.84, 207,291.24 and 44,702.88 is: 67,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,189.84 : 207,291.24 = 44,702.88 : x
  2. Step 2: Convert to fraction form
    138,189.84/207,291.24 = 44,702.88/x
  3. Step 3: Cross multiply
    138,189.84x = 207,291.24 × 44,702.88
  4. Step 4: Simplify right side
    138,189.84x = 9,266,515,426.77
  5. Step 5: Solve for x
    x = 9,266,515,426.77/138,189.84
  6. Step 6: Final answer
    x = 67,056.42

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1.5x scale

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.