Home / 120,591.12-181,034.28-115,834.38

Finding the Fourth Proportional to 120,591.12, 181,034.28 and 115,834.38

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Solution

The fourth proportional to 120,591.12, 181,034.28 and 115,834.38 is: 173,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,591.12 : 181,034.28 = 115,834.38 : x
  2. Step 2: Convert to fraction form
    120,591.12/181,034.28 = 115,834.38/x
  3. Step 3: Cross multiply
    120,591.12x = 181,034.28 × 115,834.38
  4. Step 4: Simplify right side
    120,591.12x = 20,969,993,582.55
  5. Step 5: Solve for x
    x = 20,969,993,582.55/120,591.12
  6. Step 6: Final answer
    x = 173,893.35

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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.