Home / 150,313.28-207,431.92-86,650.72

Finding the Fourth Proportional to 150,313.28, 207,431.92 and 86,650.72

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Solution

The fourth proportional to 150,313.28, 207,431.92 and 86,650.72 is: 119,577.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,313.28 : 207,431.92 = 86,650.72 : x
  2. Step 2: Convert to fraction form
    150,313.28/207,431.92 = 86,650.72/x
  3. Step 3: Cross multiply
    150,313.28x = 207,431.92 × 86,650.72
  4. Step 4: Simplify right side
    150,313.28x = 17,974,125,218.98
  5. Step 5: Solve for x
    x = 17,974,125,218.98/150,313.28
  6. Step 6: Final answer
    x = 119,577.76

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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.