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Finding the Fourth Proportional to 161,584.61, 242,591.63 and 138,043.44

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Solution

The fourth proportional to 161,584.61, 242,591.63 and 138,043.44 is: 207,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,584.61 : 242,591.63 = 138,043.44 : x
  2. Step 2: Convert to fraction form
    161,584.61/242,591.63 = 138,043.44/x
  3. Step 3: Cross multiply
    161,584.61x = 242,591.63 × 138,043.44
  4. Step 4: Simplify right side
    161,584.61x = 33,488,182,430.19
  5. Step 5: Solve for x
    x = 33,488,182,430.19/161,584.61
  6. Step 6: Final answer
    x = 207,248.60

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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.