Home / 115,680.24-173,364.84-45,540.72

Finding the Fourth Proportional to 115,680.24, 173,364.84 and 45,540.72

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Solution

The fourth proportional to 115,680.24, 173,364.84 and 45,540.72 is: 68,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,680.24 : 173,364.84 = 45,540.72 : x
  2. Step 2: Convert to fraction form
    115,680.24/173,364.84 = 45,540.72/x
  3. Step 3: Cross multiply
    115,680.24x = 173,364.84 × 45,540.72
  4. Step 4: Simplify right side
    115,680.24x = 7,895,159,636.28
  5. Step 5: Solve for x
    x = 7,895,159,636.28/115,680.24
  6. Step 6: Final answer
    x = 68,249.86

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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.