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Finding the Fourth Proportional to 104,654.40, 156,981.60 and 42,324.90

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Solution

The fourth proportional to 104,654.40, 156,981.60 and 42,324.90 is: 63,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,654.40 : 156,981.60 = 42,324.90 : x
  2. Step 2: Convert to fraction form
    104,654.40/156,981.60 = 42,324.90/x
  3. Step 3: Cross multiply
    104,654.40x = 156,981.60 × 42,324.90
  4. Step 4: Simplify right side
    104,654.40x = 6,644,230,521.84
  5. Step 5: Solve for x
    x = 6,644,230,521.84/104,654.40
  6. Step 6: Final answer
    x = 63,487.35

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1.5x scale

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.