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Finding the Fourth Proportional to 162,319.91, 243,479.87 and 102,532.80

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Solution

The fourth proportional to 162,319.91, 243,479.87 and 102,532.80 is: 153,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,319.91 : 243,479.87 = 102,532.80 : x
  2. Step 2: Convert to fraction form
    162,319.91/243,479.87 = 102,532.80/x
  3. Step 3: Cross multiply
    162,319.91x = 243,479.87 × 102,532.80
  4. Step 4: Simplify right side
    162,319.91x = 24,964,672,686.57
  5. Step 5: Solve for x
    x = 24,964,672,686.57/162,319.91
  6. Step 6: Final answer
    x = 153,799.20

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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.