Home / 204,951.15-307,262.70-86,525.10

Finding the Fourth Proportional to 204,951.15, 307,262.70 and 86,525.10

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Solution

The fourth proportional to 204,951.15, 307,262.70 and 86,525.10 is: 129,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,951.15 : 307,262.70 = 86,525.10 : x
  2. Step 2: Convert to fraction form
    204,951.15/307,262.70 = 86,525.10/x
  3. Step 3: Cross multiply
    204,951.15x = 307,262.70 × 86,525.10
  4. Step 4: Simplify right side
    204,951.15x = 26,585,935,843.77
  5. Step 5: Solve for x
    x = 26,585,935,843.77/204,951.15
  6. Step 6: Final answer
    x = 129,718.40

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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.