Home / 205,872.13-308,833.10-72,725.14

Finding the Fourth Proportional to 205,872.13, 308,833.10 and 72,725.14

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Solution

The fourth proportional to 205,872.13, 308,833.10 and 72,725.14 is: 109,096.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,872.13 : 308,833.10 = 72,725.14 : x
  2. Step 2: Convert to fraction form
    205,872.13/308,833.10 = 72,725.14/x
  3. Step 3: Cross multiply
    205,872.13x = 308,833.10 × 72,725.14
  4. Step 4: Simplify right side
    205,872.13x = 22,459,930,434.13
  5. Step 5: Solve for x
    x = 22,459,930,434.13/205,872.13
  6. Step 6: Final answer
    x = 109,096.51

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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.