Home / 215,117.58-296,814.78-129,037.26

Finding the Fourth Proportional to 215,117.58, 296,814.78 and 129,037.26

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Solution

The fourth proportional to 215,117.58, 296,814.78 and 129,037.26 is: 178,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,117.58 : 296,814.78 = 129,037.26 : x
  2. Step 2: Convert to fraction form
    215,117.58/296,814.78 = 129,037.26/x
  3. Step 3: Cross multiply
    215,117.58x = 296,814.78 × 129,037.26
  4. Step 4: Simplify right side
    215,117.58x = 38,300,165,938.70
  5. Step 5: Solve for x
    x = 38,300,165,938.70/215,117.58
  6. Step 6: Final answer
    x = 178,042.94

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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.