Home / 113,536.15-155,545.25-109,279.60

Finding the Fourth Proportional to 113,536.15, 155,545.25 and 109,279.60

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Solution

The fourth proportional to 113,536.15, 155,545.25 and 109,279.60 is: 149,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,536.15 : 155,545.25 = 109,279.60 : x
  2. Step 2: Convert to fraction form
    113,536.15/155,545.25 = 109,279.60/x
  3. Step 3: Cross multiply
    113,536.15x = 155,545.25 × 109,279.60
  4. Step 4: Simplify right side
    113,536.15x = 16,997,921,766.64
  5. Step 5: Solve for x
    x = 16,997,921,766.64/113,536.15
  6. Step 6: Final answer
    x = 149,713.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.