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Finding the Fourth Proportional to 100,874.20, 151,311.30 and 88,408.30

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Solution

The fourth proportional to 100,874.20, 151,311.30 and 88,408.30 is: 132,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,874.20 : 151,311.30 = 88,408.30 : x
  2. Step 2: Convert to fraction form
    100,874.20/151,311.30 = 88,408.30/x
  3. Step 3: Cross multiply
    100,874.20x = 151,311.30 × 88,408.30
  4. Step 4: Simplify right side
    100,874.20x = 13,377,174,803.79
  5. Step 5: Solve for x
    x = 13,377,174,803.79/100,874.20
  6. Step 6: Final answer
    x = 132,612.45

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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.