Home / 71,162.23-106,743.21-66,831.97

Finding the Fourth Proportional to 71,162.23, 106,743.21 and 66,831.97

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Solution

The fourth proportional to 71,162.23, 106,743.21 and 66,831.97 is: 100,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,162.23 : 106,743.21 = 66,831.97 : x
  2. Step 2: Convert to fraction form
    71,162.23/106,743.21 = 66,831.97/x
  3. Step 3: Cross multiply
    71,162.23x = 106,743.21 × 66,831.97
  4. Step 4: Simplify right side
    71,162.23x = 7,133,859,008.42
  5. Step 5: Solve for x
    x = 7,133,859,008.42/71,162.23
  6. Step 6: Final answer
    x = 100,247.83

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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.