Home / 103,620.85-155,513.30-40,471.23

Finding the Fourth Proportional to 103,620.85, 155,513.30 and 40,471.23

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Solution

The fourth proportional to 103,620.85, 155,513.30 and 40,471.23 is: 60,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.85 : 155,513.30 = 40,471.23 : x
  2. Step 2: Convert to fraction form
    103,620.85/155,513.30 = 40,471.23/x
  3. Step 3: Cross multiply
    103,620.85x = 155,513.30 × 40,471.23
  4. Step 4: Simplify right side
    103,620.85x = 6,293,814,532.36
  5. Step 5: Solve for x
    x = 6,293,814,532.36/103,620.85
  6. Step 6: Final answer
    x = 60,738.88

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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.