Home / 99,290.40-148,939.20-29,176.80

Finding the Fourth Proportional to 99,290.40, 148,939.20 and 29,176.80

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Solution

The fourth proportional to 99,290.40, 148,939.20 and 29,176.80 is: 43,766.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,290.40 : 148,939.20 = 29,176.80 : x
  2. Step 2: Convert to fraction form
    99,290.40/148,939.20 = 29,176.80/x
  3. Step 3: Cross multiply
    99,290.40x = 148,939.20 × 29,176.80
  4. Step 4: Simplify right side
    99,290.40x = 4,345,569,250.56
  5. Step 5: Solve for x
    x = 4,345,569,250.56/99,290.40
  6. Step 6: Final answer
    x = 43,766.26

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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.