Home / 201,496.26-278,251.56-129,999.18

Finding the Fourth Proportional to 201,496.26, 278,251.56 and 129,999.18

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Solution

The fourth proportional to 201,496.26, 278,251.56 and 129,999.18 is: 179,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,496.26 : 278,251.56 = 129,999.18 : x
  2. Step 2: Convert to fraction form
    201,496.26/278,251.56 = 129,999.18/x
  3. Step 3: Cross multiply
    201,496.26x = 278,251.56 × 129,999.18
  4. Step 4: Simplify right side
    201,496.26x = 36,172,474,633.72
  5. Step 5: Solve for x
    x = 36,172,474,633.72/201,496.26
  6. Step 6: Final answer
    x = 179,519.34

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1.5x scale

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.