Home / 103,672.50-155,416.17-40,477.92

Finding the Fourth Proportional to 103,672.50, 155,416.17 and 40,477.92

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Solution

The fourth proportional to 103,672.50, 155,416.17 and 40,477.92 is: 60,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.50 : 155,416.17 = 40,477.92 : x
  2. Step 2: Convert to fraction form
    103,672.50/155,416.17 = 40,477.92/x
  3. Step 3: Cross multiply
    103,672.50x = 155,416.17 × 40,477.92
  4. Step 4: Simplify right side
    103,672.50x = 6,290,923,295.97
  5. Step 5: Solve for x
    x = 6,290,923,295.97/103,672.50
  6. Step 6: Final answer
    x = 60,680.73

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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.