Home / 120,888.38-181,363.33-71,010.66

Finding the Fourth Proportional to 120,888.38, 181,363.33 and 71,010.66

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Solution

The fourth proportional to 120,888.38, 181,363.33 and 71,010.66 is: 106,534.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,888.38 : 181,363.33 = 71,010.66 : x
  2. Step 2: Convert to fraction form
    120,888.38/181,363.33 = 71,010.66/x
  3. Step 3: Cross multiply
    120,888.38x = 181,363.33 × 71,010.66
  4. Step 4: Simplify right side
    120,888.38x = 12,878,729,763.10
  5. Step 5: Solve for x
    x = 12,878,729,763.10/120,888.38
  6. Step 6: Final answer
    x = 106,534.06

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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.