Home / 103,867.92-155,812.80-51,226.80

Finding the Fourth Proportional to 103,867.92, 155,812.80 and 51,226.80

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Solution

The fourth proportional to 103,867.92, 155,812.80 and 51,226.80 is: 76,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,867.92 : 155,812.80 = 51,226.80 : x
  2. Step 2: Convert to fraction form
    103,867.92/155,812.80 = 51,226.80/x
  3. Step 3: Cross multiply
    103,867.92x = 155,812.80 × 51,226.80
  4. Step 4: Simplify right side
    103,867.92x = 7,981,791,143.04
  5. Step 5: Solve for x
    x = 7,981,791,143.04/103,867.92
  6. Step 6: Final answer
    x = 76,845.59

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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.