Home / 131,278.98-181,219.86-88,862.13

Finding the Fourth Proportional to 131,278.98, 181,219.86 and 88,862.13

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Solution

The fourth proportional to 131,278.98, 181,219.86 and 88,862.13 is: 122,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,278.98 : 181,219.86 = 88,862.13 : x
  2. Step 2: Convert to fraction form
    131,278.98/181,219.86 = 88,862.13/x
  3. Step 3: Cross multiply
    131,278.98x = 181,219.86 × 88,862.13
  4. Step 4: Simplify right side
    131,278.98x = 16,103,582,757.90
  5. Step 5: Solve for x
    x = 16,103,582,757.90/131,278.98
  6. Step 6: Final answer
    x = 122,666.88

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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.