Home / 155,891.24-215,077.38-88,775.72

Finding the Fourth Proportional to 155,891.24, 215,077.38 and 88,775.72

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Solution

The fourth proportional to 155,891.24, 215,077.38 and 88,775.72 is: 122,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,891.24 : 215,077.38 = 88,775.72 : x
  2. Step 2: Convert to fraction form
    155,891.24/215,077.38 = 88,775.72/x
  3. Step 3: Cross multiply
    155,891.24x = 215,077.38 × 88,775.72
  4. Step 4: Simplify right side
    155,891.24x = 19,093,649,265.21
  5. Step 5: Solve for x
    x = 19,093,649,265.21/155,891.24
  6. Step 6: Final answer
    x = 122,480.58

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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.