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Finding the Fourth Proportional to 161,146.80, 241,720.20 and 123,894.90

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Solution

The fourth proportional to 161,146.80, 241,720.20 and 123,894.90 is: 185,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,146.80 : 241,720.20 = 123,894.90 : x
  2. Step 2: Convert to fraction form
    161,146.80/241,720.20 = 123,894.90/x
  3. Step 3: Cross multiply
    161,146.80x = 241,720.20 × 123,894.90
  4. Step 4: Simplify right side
    161,146.80x = 29,947,900,006.98
  5. Step 5: Solve for x
    x = 29,947,900,006.98/161,146.80
  6. Step 6: Final answer
    x = 185,842.35

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Similar ratio
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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.