Home / 99,789.43-149,750.25-54,842.17

Finding the Fourth Proportional to 99,789.43, 149,750.25 and 54,842.17

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Solution

The fourth proportional to 99,789.43, 149,750.25 and 54,842.17 is: 82,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,789.43 : 149,750.25 = 54,842.17 : x
  2. Step 2: Convert to fraction form
    99,789.43/149,750.25 = 54,842.17/x
  3. Step 3: Cross multiply
    99,789.43x = 149,750.25 × 54,842.17
  4. Step 4: Simplify right side
    99,789.43x = 8,212,629,042.42
  5. Step 5: Solve for x
    x = 8,212,629,042.42/99,789.43
  6. Step 6: Final answer
    x = 82,299.59

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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.