Home / 215,116.58-296,813.40-129,036.26

Finding the Fourth Proportional to 215,116.58, 296,813.40 and 129,036.26

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Solution

The fourth proportional to 215,116.58, 296,813.40 and 129,036.26 is: 178,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,116.58 : 296,813.40 = 129,036.26 : x
  2. Step 2: Convert to fraction form
    215,116.58/296,813.40 = 129,036.26/x
  3. Step 3: Cross multiply
    215,116.58x = 296,813.40 × 129,036.26
  4. Step 4: Simplify right side
    215,116.58x = 38,299,691,053.88
  5. Step 5: Solve for x
    x = 38,299,691,053.88/215,116.58
  6. Step 6: Final answer
    x = 178,041.56

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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.