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Finding the Fourth Proportional to 162,008.80, 242,685.15 and 91,806.10

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Solution

The fourth proportional to 162,008.80, 242,685.15 and 91,806.10 is: 137,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.80 : 242,685.15 = 91,806.10 : x
  2. Step 2: Convert to fraction form
    162,008.80/242,685.15 = 91,806.10/x
  3. Step 3: Cross multiply
    162,008.80x = 242,685.15 × 91,806.10
  4. Step 4: Simplify right side
    162,008.80x = 22,279,977,149.42
  5. Step 5: Solve for x
    x = 22,279,977,149.42/162,008.80
  6. Step 6: Final answer
    x = 137,523.25

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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.