Home / 98,839.10-148,236.42-45,479.89

Finding the Fourth Proportional to 98,839.10, 148,236.42 and 45,479.89

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Solution

The fourth proportional to 98,839.10, 148,236.42 and 45,479.89 is: 68,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,839.10 : 148,236.42 = 45,479.89 : x
  2. Step 2: Convert to fraction form
    98,839.10/148,236.42 = 45,479.89/x
  3. Step 3: Cross multiply
    98,839.10x = 148,236.42 × 45,479.89
  4. Step 4: Simplify right side
    98,839.10x = 6,741,776,431.44
  5. Step 5: Solve for x
    x = 6,741,776,431.44/98,839.10
  6. Step 6: Final answer
    x = 68,209.61

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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.