Home / 103,418.89-155,042.21-40,224.16

Finding the Fourth Proportional to 103,418.89, 155,042.21 and 40,224.16

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Solution

The fourth proportional to 103,418.89, 155,042.21 and 40,224.16 is: 60,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418.89 : 155,042.21 = 40,224.16 : x
  2. Step 2: Convert to fraction form
    103,418.89/155,042.21 = 40,224.16/x
  3. Step 3: Cross multiply
    103,418.89x = 155,042.21 × 40,224.16
  4. Step 4: Simplify right side
    103,418.89x = 6,236,442,956.16
  5. Step 5: Solve for x
    x = 6,236,442,956.16/103,418.89
  6. Step 6: Final answer
    x = 60,302.75

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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.