Home / 206,945.10-285,687.59-135,434.36

Finding the Fourth Proportional to 206,945.10, 285,687.59 and 135,434.36

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Solution

The fourth proportional to 206,945.10, 285,687.59 and 135,434.36 is: 186,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,945.10 : 285,687.59 = 135,434.36 : x
  2. Step 2: Convert to fraction form
    206,945.10/285,687.59 = 135,434.36/x
  3. Step 3: Cross multiply
    206,945.10x = 285,687.59 × 135,434.36
  4. Step 4: Simplify right side
    206,945.10x = 38,691,915,948.64
  5. Step 5: Solve for x
    x = 38,691,915,948.64/206,945.10
  6. Step 6: Final answer
    x = 186,967.06

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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.