Home / 172,655.37-258,915.02-83,882.61

Finding the Fourth Proportional to 172,655.37, 258,915.02 and 83,882.61

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Solution

The fourth proportional to 172,655.37, 258,915.02 and 83,882.61 is: 125,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,655.37 : 258,915.02 = 83,882.61 : x
  2. Step 2: Convert to fraction form
    172,655.37/258,915.02 = 83,882.61/x
  3. Step 3: Cross multiply
    172,655.37x = 258,915.02 × 83,882.61
  4. Step 4: Simplify right side
    172,655.37x = 21,718,467,226.39
  5. Step 5: Solve for x
    x = 21,718,467,226.39/172,655.37
  6. Step 6: Final answer
    x = 125,790.86

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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.