Home / 116,764.86-161,131.23-71,425.92

Finding the Fourth Proportional to 116,764.86, 161,131.23 and 71,425.92

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Solution

The fourth proportional to 116,764.86, 161,131.23 and 71,425.92 is: 98,565.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,764.86 : 161,131.23 = 71,425.92 : x
  2. Step 2: Convert to fraction form
    116,764.86/161,131.23 = 71,425.92/x
  3. Step 3: Cross multiply
    116,764.86x = 161,131.23 × 71,425.92
  4. Step 4: Simplify right side
    116,764.86x = 11,508,946,343.48
  5. Step 5: Solve for x
    x = 11,508,946,343.48/116,764.86
  6. Step 6: Final answer
    x = 98,565.15

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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.