Home / 141,784.40-212,414.20-82,648.40

Finding the Fourth Proportional to 141,784.40, 212,414.20 and 82,648.40

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Solution

The fourth proportional to 141,784.40, 212,414.20 and 82,648.40 is: 123,819.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,784.40 : 212,414.20 = 82,648.40 : x
  2. Step 2: Convert to fraction form
    141,784.40/212,414.20 = 82,648.40/x
  3. Step 3: Cross multiply
    141,784.40x = 212,414.20 × 82,648.40
  4. Step 4: Simplify right side
    141,784.40x = 17,555,693,767.28
  5. Step 5: Solve for x
    x = 17,555,693,767.28/141,784.40
  6. Step 6: Final answer
    x = 123,819.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.