Home / 150,515.12-207,719.88-86,004.56

Finding the Fourth Proportional to 150,515.12, 207,719.88 and 86,004.56

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Solution

The fourth proportional to 150,515.12, 207,719.88 and 86,004.56 is: 118,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,515.12 : 207,719.88 = 86,004.56 : x
  2. Step 2: Convert to fraction form
    150,515.12/207,719.88 = 86,004.56/x
  3. Step 3: Cross multiply
    150,515.12x = 207,719.88 × 86,004.56
  4. Step 4: Simplify right side
    150,515.12x = 17,864,856,882.65
  5. Step 5: Solve for x
    x = 17,864,856,882.65/150,515.12
  6. Step 6: Final answer
    x = 118,691.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.