Home / 111,301.92-166,769.28-81,731.52

Finding the Fourth Proportional to 111,301.92, 166,769.28 and 81,731.52

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Solution

The fourth proportional to 111,301.92, 166,769.28 and 81,731.52 is: 122,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,301.92 : 166,769.28 = 81,731.52 : x
  2. Step 2: Convert to fraction form
    111,301.92/166,769.28 = 81,731.52/x
  3. Step 3: Cross multiply
    111,301.92x = 166,769.28 × 81,731.52
  4. Step 4: Simplify right side
    111,301.92x = 13,630,306,743.71
  5. Step 5: Solve for x
    x = 13,630,306,743.71/111,301.92
  6. Step 6: Final answer
    x = 122,462.46

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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.