Home / 155,452.20-214,521.69-87,469.26

Finding the Fourth Proportional to 155,452.20, 214,521.69 and 87,469.26

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Solution

The fourth proportional to 155,452.20, 214,521.69 and 87,469.26 is: 120,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,452.20 : 214,521.69 = 87,469.26 : x
  2. Step 2: Convert to fraction form
    155,452.20/214,521.69 = 87,469.26/x
  3. Step 3: Cross multiply
    155,452.20x = 214,521.69 × 87,469.26
  4. Step 4: Simplify right side
    155,452.20x = 18,764,053,478.25
  5. Step 5: Solve for x
    x = 18,764,053,478.25/155,452.20
  6. Step 6: Final answer
    x = 120,706.26

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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.