Home / 125,043.13-172,512.42-82,046.36

Finding the Fourth Proportional to 125,043.13, 172,512.42 and 82,046.36

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Solution

The fourth proportional to 125,043.13, 172,512.42 and 82,046.36 is: 113,193.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,043.13 : 172,512.42 = 82,046.36 : x
  2. Step 2: Convert to fraction form
    125,043.13/172,512.42 = 82,046.36/x
  3. Step 3: Cross multiply
    125,043.13x = 172,512.42 × 82,046.36
  4. Step 4: Simplify right side
    125,043.13x = 14,154,015,900.15
  5. Step 5: Solve for x
    x = 14,154,015,900.15/125,043.13
  6. Step 6: Final answer
    x = 113,193.07

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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.