Home / 150,147.32-207,170.42-89,708.90

Finding the Fourth Proportional to 150,147.32, 207,170.42 and 89,708.90

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Solution

The fourth proportional to 150,147.32, 207,170.42 and 89,708.90 is: 123,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,147.32 : 207,170.42 = 89,708.90 : x
  2. Step 2: Convert to fraction form
    150,147.32/207,170.42 = 89,708.90/x
  3. Step 3: Cross multiply
    150,147.32x = 207,170.42 × 89,708.90
  4. Step 4: Simplify right side
    150,147.32x = 18,585,030,490.74
  5. Step 5: Solve for x
    x = 18,585,030,490.74/150,147.32
  6. Step 6: Final answer
    x = 123,778.64

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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.