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Finding the Fourth Proportional to 113,375.68, 156,480.12 and 75,067.67

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Solution

The fourth proportional to 113,375.68, 156,480.12 and 75,067.67 is: 103,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,375.68 : 156,480.12 = 75,067.67 : x
  2. Step 2: Convert to fraction form
    113,375.68/156,480.12 = 75,067.67/x
  3. Step 3: Cross multiply
    113,375.68x = 156,480.12 × 75,067.67
  4. Step 4: Simplify right side
    113,375.68x = 11,746,598,400.92
  5. Step 5: Solve for x
    x = 11,746,598,400.92/113,375.68
  6. Step 6: Final answer
    x = 103,607.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.