Home / 150,375.20-207,539.88-86,700.56

Finding the Fourth Proportional to 150,375.20, 207,539.88 and 86,700.56

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Solution

The fourth proportional to 150,375.20, 207,539.88 and 86,700.56 is: 119,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,375.20 : 207,539.88 = 86,700.56 : x
  2. Step 2: Convert to fraction form
    150,375.20/207,539.88 = 86,700.56/x
  3. Step 3: Cross multiply
    150,375.20x = 207,539.88 × 86,700.56
  4. Step 4: Simplify right side
    150,375.20x = 17,993,823,818.33
  5. Step 5: Solve for x
    x = 17,993,823,818.33/150,375.20
  6. Step 6: Final answer
    x = 119,659.52

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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.