Home / 198,385.75-273,763.18-112,342.76

Finding the Fourth Proportional to 198,385.75, 273,763.18 and 112,342.76

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Solution

The fourth proportional to 198,385.75, 273,763.18 and 112,342.76 is: 155,027.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,385.75 : 273,763.18 = 112,342.76 : x
  2. Step 2: Convert to fraction form
    198,385.75/273,763.18 = 112,342.76/x
  3. Step 3: Cross multiply
    198,385.75x = 273,763.18 × 112,342.76
  4. Step 4: Simplify right side
    198,385.75x = 30,755,312,881.68
  5. Step 5: Solve for x
    x = 30,755,312,881.68/198,385.75
  6. Step 6: Final answer
    x = 155,027.83

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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.