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Finding the Fourth Proportional to 162,356.59, 243,409.13 and 112,291.91

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Solution

The fourth proportional to 162,356.59, 243,409.13 and 112,291.91 is: 168,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,356.59 : 243,409.13 = 112,291.91 : x
  2. Step 2: Convert to fraction form
    162,356.59/243,409.13 = 112,291.91/x
  3. Step 3: Cross multiply
    162,356.59x = 243,409.13 × 112,291.91
  4. Step 4: Simplify right side
    162,356.59x = 27,332,876,119.14
  5. Step 5: Solve for x
    x = 27,332,876,119.14/162,356.59
  6. Step 6: Final answer
    x = 168,350.89

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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.