Home / 111,977.38-167,972.19-45,407.62

Finding the Fourth Proportional to 111,977.38, 167,972.19 and 45,407.62

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Solution

The fourth proportional to 111,977.38, 167,972.19 and 45,407.62 is: 68,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,977.38 : 167,972.19 = 45,407.62 : x
  2. Step 2: Convert to fraction form
    111,977.38/167,972.19 = 45,407.62/x
  3. Step 3: Cross multiply
    111,977.38x = 167,972.19 × 45,407.62
  4. Step 4: Simplify right side
    111,977.38x = 7,627,217,374.09
  5. Step 5: Solve for x
    x = 7,627,217,374.09/111,977.38
  6. Step 6: Final answer
    x = 68,113.91

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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.