Home / 103,724.13-155,521.74-43,721.73

Finding the Fourth Proportional to 103,724.13, 155,521.74 and 43,721.73

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Solution

The fourth proportional to 103,724.13, 155,521.74 and 43,721.73 is: 65,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,724.13 : 155,521.74 = 43,721.73 : x
  2. Step 2: Convert to fraction form
    103,724.13/155,521.74 = 43,721.73/x
  3. Step 3: Cross multiply
    103,724.13x = 155,521.74 × 43,721.73
  4. Step 4: Simplify right side
    103,724.13x = 6,799,679,525.41
  5. Step 5: Solve for x
    x = 6,799,679,525.41/103,724.13
  6. Step 6: Final answer
    x = 65,555.43

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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.