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Finding the Fourth Proportional to 161,679.60, 242,519.40 and 82,767.60

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Solution

The fourth proportional to 161,679.60, 242,519.40 and 82,767.60 is: 124,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,679.60 : 242,519.40 = 82,767.60 : x
  2. Step 2: Convert to fraction form
    161,679.60/242,519.40 = 82,767.60/x
  3. Step 3: Cross multiply
    161,679.60x = 242,519.40 × 82,767.60
  4. Step 4: Simplify right side
    161,679.60x = 20,072,748,691.44
  5. Step 5: Solve for x
    x = 20,072,748,691.44/161,679.60
  6. Step 6: Final answer
    x = 124,151.40

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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.