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Finding the Fourth Proportional to 163,348.02, 225,419.40 and 91,734.30

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Solution

The fourth proportional to 163,348.02, 225,419.40 and 91,734.30 is: 126,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,348.02 : 225,419.40 = 91,734.30 : x
  2. Step 2: Convert to fraction form
    163,348.02/225,419.40 = 91,734.30/x
  3. Step 3: Cross multiply
    163,348.02x = 225,419.40 × 91,734.30
  4. Step 4: Simplify right side
    163,348.02x = 20,678,690,865.42
  5. Step 5: Solve for x
    x = 20,678,690,865.42/163,348.02
  6. Step 6: Final answer
    x = 126,592.85

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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.