Home / 131,394.32-181,324.33-74,805.69

Finding the Fourth Proportional to 131,394.32, 181,324.33 and 74,805.69

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Solution

The fourth proportional to 131,394.32, 181,324.33 and 74,805.69 is: 103,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,394.32 : 181,324.33 = 74,805.69 : x
  2. Step 2: Convert to fraction form
    131,394.32/181,324.33 = 74,805.69/x
  3. Step 3: Cross multiply
    131,394.32x = 181,324.33 × 74,805.69
  4. Step 4: Simplify right side
    131,394.32x = 13,564,091,619.44
  5. Step 5: Solve for x
    x = 13,564,091,619.44/131,394.32
  6. Step 6: Final answer
    x = 103,231.95

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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.