Home / 204,823.30-307,234.95-86,628.10

Finding the Fourth Proportional to 204,823.30, 307,234.95 and 86,628.10

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Solution

The fourth proportional to 204,823.30, 307,234.95 and 86,628.10 is: 129,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,823.30 : 307,234.95 = 86,628.10 : x
  2. Step 2: Convert to fraction form
    204,823.30/307,234.95 = 86,628.10/x
  3. Step 3: Cross multiply
    204,823.30x = 307,234.95 × 86,628.10
  4. Step 4: Simplify right side
    204,823.30x = 26,615,179,972.10
  5. Step 5: Solve for x
    x = 26,615,179,972.10/204,823.30
  6. Step 6: Final answer
    x = 129,942.15

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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.