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Finding the Fourth Proportional to 150,597.29, 207,789.37 and 90,144.95

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Solution

The fourth proportional to 150,597.29, 207,789.37 and 90,144.95 is: 124,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,597.29 : 207,789.37 = 90,144.95 : x
  2. Step 2: Convert to fraction form
    150,597.29/207,789.37 = 90,144.95/x
  3. Step 3: Cross multiply
    150,597.29x = 207,789.37 × 90,144.95
  4. Step 4: Simplify right side
    150,597.29x = 18,731,162,369.18
  5. Step 5: Solve for x
    x = 18,731,162,369.18/150,597.29
  6. Step 6: Final answer
    x = 124,379.15

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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.