Home / 103,540.29-155,369.43-40,352.19

Finding the Fourth Proportional to 103,540.29, 155,369.43 and 40,352.19

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Solution

The fourth proportional to 103,540.29, 155,369.43 and 40,352.19 is: 60,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,540.29 : 155,369.43 = 40,352.19 : x
  2. Step 2: Convert to fraction form
    103,540.29/155,369.43 = 40,352.19/x
  3. Step 3: Cross multiply
    103,540.29x = 155,369.43 × 40,352.19
  4. Step 4: Simplify right side
    103,540.29x = 6,269,496,759.55
  5. Step 5: Solve for x
    x = 6,269,496,759.55/103,540.29
  6. Step 6: Final answer
    x = 60,551.28

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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.