Home / 103,408.12-155,103.54-41,061.88

Finding the Fourth Proportional to 103,408.12, 155,103.54 and 41,061.88

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Solution

The fourth proportional to 103,408.12, 155,103.54 and 41,061.88 is: 61,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,408.12 : 155,103.54 = 41,061.88 : x
  2. Step 2: Convert to fraction form
    103,408.12/155,103.54 = 41,061.88/x
  3. Step 3: Cross multiply
    103,408.12x = 155,103.54 × 41,061.88
  4. Step 4: Simplify right side
    103,408.12x = 6,368,842,947.06
  5. Step 5: Solve for x
    x = 6,368,842,947.06/103,408.12
  6. Step 6: Final answer
    x = 61,589.39

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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.