Home / 185,608.55-256,139.79-100,725.61

Finding the Fourth Proportional to 185,608.55, 256,139.79 and 100,725.61

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Solution

The fourth proportional to 185,608.55, 256,139.79 and 100,725.61 is: 139,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,608.55 : 256,139.79 = 100,725.61 : x
  2. Step 2: Convert to fraction form
    185,608.55/256,139.79 = 100,725.61/x
  3. Step 3: Cross multiply
    185,608.55x = 256,139.79 × 100,725.61
  4. Step 4: Simplify right side
    185,608.55x = 25,799,836,593.02
  5. Step 5: Solve for x
    x = 25,799,836,593.02/185,608.55
  6. Step 6: Final answer
    x = 139,001.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.