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Finding the Fourth Proportional to 161,437.86, 242,211.28 and 71,468.16

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Solution

The fourth proportional to 161,437.86, 242,211.28 and 71,468.16 is: 107,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,437.86 : 242,211.28 = 71,468.16 : x
  2. Step 2: Convert to fraction form
    161,437.86/242,211.28 = 71,468.16/x
  3. Step 3: Cross multiply
    161,437.86x = 242,211.28 × 71,468.16
  4. Step 4: Simplify right side
    161,437.86x = 17,310,394,512.84
  5. Step 5: Solve for x
    x = 17,310,394,512.84/161,437.86
  6. Step 6: Final answer
    x = 107,226.36

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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.