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Finding the Fourth Proportional to 168,760.60, 253,140.90 and 98,603.80

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Solution

The fourth proportional to 168,760.60, 253,140.90 and 98,603.80 is: 147,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,760.60 : 253,140.90 = 98,603.80 : x
  2. Step 2: Convert to fraction form
    168,760.60/253,140.90 = 98,603.80/x
  3. Step 3: Cross multiply
    168,760.60x = 253,140.90 × 98,603.80
  4. Step 4: Simplify right side
    168,760.60x = 24,960,654,675.42
  5. Step 5: Solve for x
    x = 24,960,654,675.42/168,760.60
  6. Step 6: Final answer
    x = 147,905.70

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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.