Home / 103,665.20-155,382.60-44,490.80

Finding the Fourth Proportional to 103,665.20, 155,382.60 and 44,490.80

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Solution

The fourth proportional to 103,665.20, 155,382.60 and 44,490.80 is: 66,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.20 : 155,382.60 = 44,490.80 : x
  2. Step 2: Convert to fraction form
    103,665.20/155,382.60 = 44,490.80/x
  3. Step 3: Cross multiply
    103,665.20x = 155,382.60 × 44,490.80
  4. Step 4: Simplify right side
    103,665.20x = 6,913,096,180.08
  5. Step 5: Solve for x
    x = 6,913,096,180.08/103,665.20
  6. Step 6: Final answer
    x = 66,686.76

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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.