Home / 155,264.20-214,287.24-87,286.78

Finding the Fourth Proportional to 155,264.20, 214,287.24 and 87,286.78

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Solution

The fourth proportional to 155,264.20, 214,287.24 and 87,286.78 is: 120,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,264.20 : 214,287.24 = 87,286.78 : x
  2. Step 2: Convert to fraction form
    155,264.20/214,287.24 = 87,286.78/x
  3. Step 3: Cross multiply
    155,264.20x = 214,287.24 × 87,286.78
  4. Step 4: Simplify right side
    155,264.20x = 18,704,443,174.69
  5. Step 5: Solve for x
    x = 18,704,443,174.69/155,264.20
  6. Step 6: Final answer
    x = 120,468.49

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1.5x scale

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.