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Finding the Fourth Proportional to 162,791.71, 243,892.32 and 120,202.62

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Solution

The fourth proportional to 162,791.71, 243,892.32 and 120,202.62 is: 180,085.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,791.71 : 243,892.32 = 120,202.62 : x
  2. Step 2: Convert to fraction form
    162,791.71/243,892.32 = 120,202.62/x
  3. Step 3: Cross multiply
    162,791.71x = 243,892.32 × 120,202.62
  4. Step 4: Simplify right side
    162,791.71x = 29,316,494,496.52
  5. Step 5: Solve for x
    x = 29,316,494,496.52/162,791.71
  6. Step 6: Final answer
    x = 180,085.92

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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.