Home / 207,865.72-311,831.22-67,591.52

Finding the Fourth Proportional to 207,865.72, 311,831.22 and 67,591.52

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Solution

The fourth proportional to 207,865.72, 311,831.22 and 67,591.52 is: 101,397.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,865.72 : 311,831.22 = 67,591.52 : x
  2. Step 2: Convert to fraction form
    207,865.72/311,831.22 = 67,591.52/x
  3. Step 3: Cross multiply
    207,865.72x = 311,831.22 × 67,591.52
  4. Step 4: Simplify right side
    207,865.72x = 21,077,146,143.25
  5. Step 5: Solve for x
    x = 21,077,146,143.25/207,865.72
  6. Step 6: Final answer
    x = 101,397.89

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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.