Home / 103,728.40-155,234.20-62,205.20

Finding the Fourth Proportional to 103,728.40, 155,234.20 and 62,205.20

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Solution

The fourth proportional to 103,728.40, 155,234.20 and 62,205.20 is: 93,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,728.40 : 155,234.20 = 62,205.20 : x
  2. Step 2: Convert to fraction form
    103,728.40/155,234.20 = 62,205.20/x
  3. Step 3: Cross multiply
    103,728.40x = 155,234.20 × 62,205.20
  4. Step 4: Simplify right side
    103,728.40x = 9,656,374,457.84
  5. Step 5: Solve for x
    x = 9,656,374,457.84/103,728.40
  6. Step 6: Final answer
    x = 93,092.87

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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.