Home / 115,422.32-173,139.78-36,530.66

Finding the Fourth Proportional to 115,422.32, 173,139.78 and 36,530.66

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Solution

The fourth proportional to 115,422.32, 173,139.78 and 36,530.66 is: 54,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,422.32 : 173,139.78 = 36,530.66 : x
  2. Step 2: Convert to fraction form
    115,422.32/173,139.78 = 36,530.66/x
  3. Step 3: Cross multiply
    115,422.32x = 173,139.78 × 36,530.66
  4. Step 4: Simplify right side
    115,422.32x = 6,324,910,435.65
  5. Step 5: Solve for x
    x = 6,324,910,435.65/115,422.32
  6. Step 6: Final answer
    x = 54,797.98

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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.