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Finding the Fourth Proportional to 100,393.38, 150,294.18 and 87,937.74

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Solution

The fourth proportional to 100,393.38, 150,294.18 and 87,937.74 is: 131,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,393.38 : 150,294.18 = 87,937.74 : x
  2. Step 2: Convert to fraction form
    100,393.38/150,294.18 = 87,937.74/x
  3. Step 3: Cross multiply
    100,393.38x = 150,294.18 × 87,937.74
  4. Step 4: Simplify right side
    100,393.38x = 13,216,530,524.35
  5. Step 5: Solve for x
    x = 13,216,530,524.35/100,393.38
  6. Step 6: Final answer
    x = 131,647.43

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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.