Home / 98,876.18-148,321.20-39,711.90

Finding the Fourth Proportional to 98,876.18, 148,321.20 and 39,711.90

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Solution

The fourth proportional to 98,876.18, 148,321.20 and 39,711.90 is: 59,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,876.18 : 148,321.20 = 39,711.90 : x
  2. Step 2: Convert to fraction form
    98,876.18/148,321.20 = 39,711.90/x
  3. Step 3: Cross multiply
    98,876.18x = 148,321.20 × 39,711.90
  4. Step 4: Simplify right side
    98,876.18x = 5,890,116,662.28
  5. Step 5: Solve for x
    x = 5,890,116,662.28/98,876.18
  6. Step 6: Final answer
    x = 59,570.63

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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.