Home / 103,664.20-155,381.10-44,489.80

Finding the Fourth Proportional to 103,664.20, 155,381.10 and 44,489.80

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Solution

The fourth proportional to 103,664.20, 155,381.10 and 44,489.80 is: 66,685.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,664.20 : 155,381.10 = 44,489.80 : x
  2. Step 2: Convert to fraction form
    103,664.20/155,381.10 = 44,489.80/x
  3. Step 3: Cross multiply
    103,664.20x = 155,381.10 × 44,489.80
  4. Step 4: Simplify right side
    103,664.20x = 6,912,874,062.78
  5. Step 5: Solve for x
    x = 6,912,874,062.78/103,664.20
  6. Step 6: Final answer
    x = 66,685.26

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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.