Home / 100,515.12-150,773.85-25,635.12

Finding the Fourth Proportional to 100,515.12, 150,773.85 and 25,635.12

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Solution

The fourth proportional to 100,515.12, 150,773.85 and 25,635.12 is: 38,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,515.12 : 150,773.85 = 25,635.12 : x
  2. Step 2: Convert to fraction form
    100,515.12/150,773.85 = 25,635.12/x
  3. Step 3: Cross multiply
    100,515.12x = 150,773.85 × 25,635.12
  4. Step 4: Simplify right side
    100,515.12x = 3,865,105,737.61
  5. Step 5: Solve for x
    x = 3,865,105,737.61/100,515.12
  6. Step 6: Final answer
    x = 38,452.98

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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.