Home / 205,767.54-308,688.17-72,725.04

Finding the Fourth Proportional to 205,767.54, 308,688.17 and 72,725.04

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Solution

The fourth proportional to 205,767.54, 308,688.17 and 72,725.04 is: 109,100.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,767.54 : 308,688.17 = 72,725.04 : x
  2. Step 2: Convert to fraction form
    205,767.54/308,688.17 = 72,725.04/x
  3. Step 3: Cross multiply
    205,767.54x = 308,688.17 × 72,725.04
  4. Step 4: Simplify right side
    205,767.54x = 22,449,359,147.15
  5. Step 5: Solve for x
    x = 22,449,359,147.15/205,767.54
  6. Step 6: Final answer
    x = 109,100.59

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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.