Home / 98,925.20-148,213.92-82,391.12

Finding the Fourth Proportional to 98,925.20, 148,213.92 and 82,391.12

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Solution

The fourth proportional to 98,925.20, 148,213.92 and 82,391.12 is: 123,441.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,925.20 : 148,213.92 = 82,391.12 : x
  2. Step 2: Convert to fraction form
    98,925.20/148,213.92 = 82,391.12/x
  3. Step 3: Cross multiply
    98,925.20x = 148,213.92 × 82,391.12
  4. Step 4: Simplify right side
    98,925.20x = 12,211,510,868.39
  5. Step 5: Solve for x
    x = 12,211,510,868.39/98,925.20
  6. Step 6: Final answer
    x = 123,441.86

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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.