Home / 142,556.20-196,725.04-82,126.69

Finding the Fourth Proportional to 142,556.20, 196,725.04 and 82,126.69

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Solution

The fourth proportional to 142,556.20, 196,725.04 and 82,126.69 is: 113,333.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,556.20 : 196,725.04 = 82,126.69 : x
  2. Step 2: Convert to fraction form
    142,556.20/196,725.04 = 82,126.69/x
  3. Step 3: Cross multiply
    142,556.20x = 196,725.04 × 82,126.69
  4. Step 4: Simplify right side
    142,556.20x = 16,156,376,375.32
  5. Step 5: Solve for x
    x = 16,156,376,375.32/142,556.20
  6. Step 6: Final answer
    x = 113,333.38

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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.