Home / 136,405.29-188,174.12-105,982.43

Finding the Fourth Proportional to 136,405.29, 188,174.12 and 105,982.43

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Solution

The fourth proportional to 136,405.29, 188,174.12 and 105,982.43 is: 146,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,405.29 : 188,174.12 = 105,982.43 : x
  2. Step 2: Convert to fraction form
    136,405.29/188,174.12 = 105,982.43/x
  3. Step 3: Cross multiply
    136,405.29x = 188,174.12 × 105,982.43
  4. Step 4: Simplify right side
    136,405.29x = 19,943,149,029.93
  5. Step 5: Solve for x
    x = 19,943,149,029.93/136,405.29
  6. Step 6: Final answer
    x = 146,205.10

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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.