Home / 150,638.28-207,887.32-90,218.76

Finding the Fourth Proportional to 150,638.28, 207,887.32 and 90,218.76

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Solution

The fourth proportional to 150,638.28, 207,887.32 and 90,218.76 is: 124,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,638.28 : 207,887.32 = 90,218.76 : x
  2. Step 2: Convert to fraction form
    150,638.28/207,887.32 = 90,218.76/x
  3. Step 3: Cross multiply
    150,638.28x = 207,887.32 × 90,218.76
  4. Step 4: Simplify right side
    150,638.28x = 18,755,336,230.12
  5. Step 5: Solve for x
    x = 18,755,336,230.12/150,638.28
  6. Step 6: Final answer
    x = 124,505.78

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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.