Home / 103,638.70-155,534.85-41,353.90

Finding the Fourth Proportional to 103,638.70, 155,534.85 and 41,353.90

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Solution

The fourth proportional to 103,638.70, 155,534.85 and 41,353.90 is: 62,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,638.70 : 155,534.85 = 41,353.90 : x
  2. Step 2: Convert to fraction form
    103,638.70/155,534.85 = 41,353.90/x
  3. Step 3: Cross multiply
    103,638.70x = 155,534.85 × 41,353.90
  4. Step 4: Simplify right side
    103,638.70x = 6,431,972,633.42
  5. Step 5: Solve for x
    x = 6,431,972,633.42/103,638.70
  6. Step 6: Final answer
    x = 62,061.49

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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.