Home / 115,247.16-172,948.59-40,367.88

Finding the Fourth Proportional to 115,247.16, 172,948.59 and 40,367.88

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Solution

The fourth proportional to 115,247.16, 172,948.59 and 40,367.88 is: 60,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,247.16 : 172,948.59 = 40,367.88 : x
  2. Step 2: Convert to fraction form
    115,247.16/172,948.59 = 40,367.88/x
  3. Step 3: Cross multiply
    115,247.16x = 172,948.59 × 40,367.88
  4. Step 4: Simplify right side
    115,247.16x = 6,981,567,927.29
  5. Step 5: Solve for x
    x = 6,981,567,927.29/115,247.16
  6. Step 6: Final answer
    x = 60,579.09

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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.