Home / 98,680.86-148,039.56-31,229.88

Finding the Fourth Proportional to 98,680.86, 148,039.56 and 31,229.88

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Solution

The fourth proportional to 98,680.86, 148,039.56 and 31,229.88 is: 46,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,680.86 : 148,039.56 = 31,229.88 : x
  2. Step 2: Convert to fraction form
    98,680.86/148,039.56 = 31,229.88/x
  3. Step 3: Cross multiply
    98,680.86x = 148,039.56 × 31,229.88
  4. Step 4: Simplify right side
    98,680.86x = 4,623,257,694.05
  5. Step 5: Solve for x
    x = 4,623,257,694.05/98,680.86
  6. Step 6: Final answer
    x = 46,850.60

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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.