Home / 144,037.30-215,872.35-80,857.30

Finding the Fourth Proportional to 144,037.30, 215,872.35 and 80,857.30

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Solution

The fourth proportional to 144,037.30, 215,872.35 and 80,857.30 is: 121,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,037.30 : 215,872.35 = 80,857.30 : x
  2. Step 2: Convert to fraction form
    144,037.30/215,872.35 = 80,857.30/x
  3. Step 3: Cross multiply
    144,037.30x = 215,872.35 × 80,857.30
  4. Step 4: Simplify right side
    144,037.30x = 17,454,855,365.66
  5. Step 5: Solve for x
    x = 17,454,855,365.66/144,037.30
  6. Step 6: Final answer
    x = 121,182.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.