Home / 155,982.03-215,255.25-88,013.42

Finding the Fourth Proportional to 155,982.03, 215,255.25 and 88,013.42

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Solution

The fourth proportional to 155,982.03, 215,255.25 and 88,013.42 is: 121,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,982.03 : 215,255.25 = 88,013.42 : x
  2. Step 2: Convert to fraction form
    155,982.03/215,255.25 = 88,013.42/x
  3. Step 3: Cross multiply
    155,982.03x = 215,255.25 × 88,013.42
  4. Step 4: Simplify right side
    155,982.03x = 18,945,349,649.18
  5. Step 5: Solve for x
    x = 18,945,349,649.18/155,982.03
  6. Step 6: Final answer
    x = 121,458.54

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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.