Home / 120,887.06-181,330.62-45,989.90

Finding the Fourth Proportional to 120,887.06, 181,330.62 and 45,989.90

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Solution

The fourth proportional to 120,887.06, 181,330.62 and 45,989.90 is: 68,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.06 : 181,330.62 = 45,989.90 : x
  2. Step 2: Convert to fraction form
    120,887.06/181,330.62 = 45,989.90/x
  3. Step 3: Cross multiply
    120,887.06x = 181,330.62 × 45,989.90
  4. Step 4: Simplify right side
    120,887.06x = 8,339,377,080.74
  5. Step 5: Solve for x
    x = 8,339,377,080.74/120,887.06
  6. Step 6: Final answer
    x = 68,984.86

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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.