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Finding the Fourth Proportional to 150,490.96, 207,605.97 and 90,049.43

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Solution

The fourth proportional to 150,490.96, 207,605.97 and 90,049.43 is: 124,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,490.96 : 207,605.97 = 90,049.43 : x
  2. Step 2: Convert to fraction form
    150,490.96/207,605.97 = 90,049.43/x
  3. Step 3: Cross multiply
    150,490.96x = 207,605.97 × 90,049.43
  4. Step 4: Simplify right side
    150,490.96x = 18,694,799,782.11
  5. Step 5: Solve for x
    x = 18,694,799,782.11/150,490.96
  6. Step 6: Final answer
    x = 124,225.40

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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.