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Finding the Fourth Proportional to 162,078.71, 223,400.90 and 108,344.12

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Solution

The fourth proportional to 162,078.71, 223,400.90 and 108,344.12 is: 149,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,078.71 : 223,400.90 = 108,344.12 : x
  2. Step 2: Convert to fraction form
    162,078.71/223,400.90 = 108,344.12/x
  3. Step 3: Cross multiply
    162,078.71x = 223,400.90 × 108,344.12
  4. Step 4: Simplify right side
    162,078.71x = 24,204,172,258.98
  5. Step 5: Solve for x
    x = 24,204,172,258.98/162,078.71
  6. Step 6: Final answer
    x = 149,335.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.