Home / 109,432.40-164,278.20-108,654.80

Finding the Fourth Proportional to 109,432.40, 164,278.20 and 108,654.80

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Solution

The fourth proportional to 109,432.40, 164,278.20 and 108,654.80 is: 163,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,432.40 : 164,278.20 = 108,654.80 : x
  2. Step 2: Convert to fraction form
    109,432.40/164,278.20 = 108,654.80/x
  3. Step 3: Cross multiply
    109,432.40x = 164,278.20 × 108,654.80
  4. Step 4: Simplify right side
    109,432.40x = 17,849,614,965.36
  5. Step 5: Solve for x
    x = 17,849,614,965.36/109,432.40
  6. Step 6: Final answer
    x = 163,110.88

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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.