Home / 150,143.28-207,234.69-89,749.74

Finding the Fourth Proportional to 150,143.28, 207,234.69 and 89,749.74

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Solution

The fourth proportional to 150,143.28, 207,234.69 and 89,749.74 is: 123,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,143.28 : 207,234.69 = 89,749.74 : x
  2. Step 2: Convert to fraction form
    150,143.28/207,234.69 = 89,749.74/x
  3. Step 3: Cross multiply
    150,143.28x = 207,234.69 × 89,749.74
  4. Step 4: Simplify right side
    150,143.28x = 18,599,259,546.48
  5. Step 5: Solve for x
    x = 18,599,259,546.48/150,143.28
  6. Step 6: Final answer
    x = 123,876.74

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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.