Home / 120,631.26-181,229.66-113,814.75

Finding the Fourth Proportional to 120,631.26, 181,229.66 and 113,814.75

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Solution

The fourth proportional to 120,631.26, 181,229.66 and 113,814.75 is: 170,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.26 : 181,229.66 = 113,814.75 : x
  2. Step 2: Convert to fraction form
    120,631.26/181,229.66 = 113,814.75/x
  3. Step 3: Cross multiply
    120,631.26x = 181,229.66 × 113,814.75
  4. Step 4: Simplify right side
    120,631.26x = 20,626,607,876.41
  5. Step 5: Solve for x
    x = 20,626,607,876.41/120,631.26
  6. Step 6: Final answer
    x = 170,988.91

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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.