Home / 102,581.79-154,143.30-55,231.89

Finding the Fourth Proportional to 102,581.79, 154,143.30 and 55,231.89

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Solution

The fourth proportional to 102,581.79, 154,143.30 and 55,231.89 is: 82,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,581.79 : 154,143.30 = 55,231.89 : x
  2. Step 2: Convert to fraction form
    102,581.79/154,143.30 = 55,231.89/x
  3. Step 3: Cross multiply
    102,581.79x = 154,143.30 × 55,231.89
  4. Step 4: Simplify right side
    102,581.79x = 8,513,625,789.84
  5. Step 5: Solve for x
    x = 8,513,625,789.84/102,581.79
  6. Step 6: Final answer
    x = 82,993.54

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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.