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Finding the Fourth Proportional to 104,725, 156,990.12 and 38,150.02

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Solution

The fourth proportional to 104,725, 156,990.12 and 38,150.02 is: 57,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,725 : 156,990.12 = 38,150.02 : x
  2. Step 2: Convert to fraction form
    104,725/156,990.12 = 38,150.02/x
  3. Step 3: Cross multiply
    104,725x = 156,990.12 × 38,150.02
  4. Step 4: Simplify right side
    104,725x = 5,989,176,217.80
  5. Step 5: Solve for x
    x = 5,989,176,217.80/104,725
  6. Step 6: Final answer
    x = 57,189.56

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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.