Home / 103,486.20-155,229.30-75,601.95

Finding the Fourth Proportional to 103,486.20, 155,229.30 and 75,601.95

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Solution

The fourth proportional to 103,486.20, 155,229.30 and 75,601.95 is: 113,402.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.20 : 155,229.30 = 75,601.95 : x
  2. Step 2: Convert to fraction form
    103,486.20/155,229.30 = 75,601.95/x
  3. Step 3: Cross multiply
    103,486.20x = 155,229.30 × 75,601.95
  4. Step 4: Simplify right side
    103,486.20x = 11,735,637,777.14
  5. Step 5: Solve for x
    x = 11,735,637,777.14/103,486.20
  6. Step 6: Final answer
    x = 113,402.93

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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.