Home / 102,990.92-154,544.82-55,605.38

Finding the Fourth Proportional to 102,990.92, 154,544.82 and 55,605.38

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Solution

The fourth proportional to 102,990.92, 154,544.82 and 55,605.38 is: 83,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,990.92 : 154,544.82 = 55,605.38 : x
  2. Step 2: Convert to fraction form
    102,990.92/154,544.82 = 55,605.38/x
  3. Step 3: Cross multiply
    102,990.92x = 154,544.82 × 55,605.38
  4. Step 4: Simplify right side
    102,990.92x = 8,593,523,443.13
  5. Step 5: Solve for x
    x = 8,593,523,443.13/102,990.92
  6. Step 6: Final answer
    x = 83,439.62

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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.