Home / 172,649.37-258,906.02-83,876.61

Finding the Fourth Proportional to 172,649.37, 258,906.02 and 83,876.61

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Solution

The fourth proportional to 172,649.37, 258,906.02 and 83,876.61 is: 125,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,649.37 : 258,906.02 = 83,876.61 : x
  2. Step 2: Convert to fraction form
    172,649.37/258,906.02 = 83,876.61/x
  3. Step 3: Cross multiply
    172,649.37x = 258,906.02 × 83,876.61
  4. Step 4: Simplify right side
    172,649.37x = 21,716,158,846.81
  5. Step 5: Solve for x
    x = 21,716,158,846.81/172,649.37
  6. Step 6: Final answer
    x = 125,781.86

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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.