Home / 100,375.20-150,465.60-89,877.60

Finding the Fourth Proportional to 100,375.20, 150,465.60 and 89,877.60

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Solution

The fourth proportional to 100,375.20, 150,465.60 and 89,877.60 is: 134,729.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,375.20 : 150,465.60 = 89,877.60 : x
  2. Step 2: Convert to fraction form
    100,375.20/150,465.60 = 89,877.60/x
  3. Step 3: Cross multiply
    100,375.20x = 150,465.60 × 89,877.60
  4. Step 4: Simplify right side
    100,375.20x = 13,523,487,010.56
  5. Step 5: Solve for x
    x = 13,523,487,010.56/100,375.20
  6. Step 6: Final answer
    x = 134,729.37

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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.