Home / 131,174.12-181,020.68-74,585.90

Finding the Fourth Proportional to 131,174.12, 181,020.68 and 74,585.90

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Solution

The fourth proportional to 131,174.12, 181,020.68 and 74,585.90 is: 102,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.12 : 181,020.68 = 74,585.90 : x
  2. Step 2: Convert to fraction form
    131,174.12/181,020.68 = 74,585.90/x
  3. Step 3: Cross multiply
    131,174.12x = 181,020.68 × 74,585.90
  4. Step 4: Simplify right side
    131,174.12x = 13,501,589,058.38
  5. Step 5: Solve for x
    x = 13,501,589,058.38/131,174.12
  6. Step 6: Final answer
    x = 102,928.76

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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.