Home / 155,906.20-215,150.44-84,286.24

Finding the Fourth Proportional to 155,906.20, 215,150.44 and 84,286.24

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Solution

The fourth proportional to 155,906.20, 215,150.44 and 84,286.24 is: 116,314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,906.20 : 215,150.44 = 84,286.24 : x
  2. Step 2: Convert to fraction form
    155,906.20/215,150.44 = 84,286.24/x
  3. Step 3: Cross multiply
    155,906.20x = 215,150.44 × 84,286.24
  4. Step 4: Simplify right side
    155,906.20x = 18,134,221,621.95
  5. Step 5: Solve for x
    x = 18,134,221,621.95/155,906.20
  6. Step 6: Final answer
    x = 116,314.95

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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.