Home / 120,887.10-181,287.45-54,359.10

Finding the Fourth Proportional to 120,887.10, 181,287.45 and 54,359.10

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Solution

The fourth proportional to 120,887.10, 181,287.45 and 54,359.10 is: 81,519.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.10 : 181,287.45 = 54,359.10 : x
  2. Step 2: Convert to fraction form
    120,887.10/181,287.45 = 54,359.10/x
  3. Step 3: Cross multiply
    120,887.10x = 181,287.45 × 54,359.10
  4. Step 4: Simplify right side
    120,887.10x = 9,854,622,623.30
  5. Step 5: Solve for x
    x = 9,854,622,623.30/120,887.10
  6. Step 6: Final answer
    x = 81,519.22

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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.