Home / 132,213.90-198,612.45-127,256.70

Finding the Fourth Proportional to 132,213.90, 198,612.45 and 127,256.70

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Solution

The fourth proportional to 132,213.90, 198,612.45 and 127,256.70 is: 191,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,213.90 : 198,612.45 = 127,256.70 : x
  2. Step 2: Convert to fraction form
    132,213.90/198,612.45 = 127,256.70/x
  3. Step 3: Cross multiply
    132,213.90x = 198,612.45 × 127,256.70
  4. Step 4: Simplify right side
    132,213.90x = 25,274,764,965.92
  5. Step 5: Solve for x
    x = 25,274,764,965.92/132,213.90
  6. Step 6: Final answer
    x = 191,165.72

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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.