Home / 120,948.66-181,360.80-54,331.65

Finding the Fourth Proportional to 120,948.66, 181,360.80 and 54,331.65

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Solution

The fourth proportional to 120,948.66, 181,360.80 and 54,331.65 is: 81,469.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,948.66 : 181,360.80 = 54,331.65 : x
  2. Step 2: Convert to fraction form
    120,948.66/181,360.80 = 54,331.65/x
  3. Step 3: Cross multiply
    120,948.66x = 181,360.80 × 54,331.65
  4. Step 4: Simplify right side
    120,948.66x = 9,853,631,509.32
  5. Step 5: Solve for x
    x = 9,853,631,509.32/120,948.66
  6. Step 6: Final answer
    x = 81,469.54

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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.