Home / 143,863.80-215,613.45-54,998.70

Finding the Fourth Proportional to 143,863.80, 215,613.45 and 54,998.70

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Solution

The fourth proportional to 143,863.80, 215,613.45 and 54,998.70 is: 82,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.80 : 215,613.45 = 54,998.70 : x
  2. Step 2: Convert to fraction form
    143,863.80/215,613.45 = 54,998.70/x
  3. Step 3: Cross multiply
    143,863.80x = 215,613.45 × 54,998.70
  4. Step 4: Simplify right side
    143,863.80x = 11,858,459,452.52
  5. Step 5: Solve for x
    x = 11,858,459,452.52/143,863.80
  6. Step 6: Final answer
    x = 82,428.38

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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.