Home / 155,927.44-215,179.57-87,944.21

Finding the Fourth Proportional to 155,927.44, 215,179.57 and 87,944.21

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Solution

The fourth proportional to 155,927.44, 215,179.57 and 87,944.21 is: 121,362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,927.44 : 215,179.57 = 87,944.21 : x
  2. Step 2: Convert to fraction form
    155,927.44/215,179.57 = 87,944.21/x
  3. Step 3: Cross multiply
    155,927.44x = 215,179.57 × 87,944.21
  4. Step 4: Simplify right side
    155,927.44x = 18,923,797,132.75
  5. Step 5: Solve for x
    x = 18,923,797,132.75/155,927.44
  6. Step 6: Final answer
    x = 121,362.84

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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.