Home / 172,085.13-258,193.89-83,331.81

Finding the Fourth Proportional to 172,085.13, 258,193.89 and 83,331.81

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Solution

The fourth proportional to 172,085.13, 258,193.89 and 83,331.81 is: 125,029.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,085.13 : 258,193.89 = 83,331.81 : x
  2. Step 2: Convert to fraction form
    172,085.13/258,193.89 = 83,331.81/x
  3. Step 3: Cross multiply
    172,085.13x = 258,193.89 × 83,331.81
  4. Step 4: Simplify right side
    172,085.13x = 21,515,764,184.64
  5. Step 5: Solve for x
    x = 21,515,764,184.64/172,085.13
  6. Step 6: Final answer
    x = 125,029.77

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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.