Home / 207,444.50-311,037.87-87,439.71

Finding the Fourth Proportional to 207,444.50, 311,037.87 and 87,439.71

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Solution

The fourth proportional to 207,444.50, 311,037.87 and 87,439.71 is: 131,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,444.50 : 311,037.87 = 87,439.71 : x
  2. Step 2: Convert to fraction form
    207,444.50/311,037.87 = 87,439.71/x
  3. Step 3: Cross multiply
    207,444.50x = 311,037.87 × 87,439.71
  4. Step 4: Simplify right side
    207,444.50x = 27,197,060,131.08
  5. Step 5: Solve for x
    x = 27,197,060,131.08/207,444.50
  6. Step 6: Final answer
    x = 131,105.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.