Home / 131,042.40-196,612.20-52,213.20

Finding the Fourth Proportional to 131,042.40, 196,612.20 and 52,213.20

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Solution

The fourth proportional to 131,042.40, 196,612.20 and 52,213.20 is: 78,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,042.40 : 196,612.20 = 52,213.20 : x
  2. Step 2: Convert to fraction form
    131,042.40/196,612.20 = 52,213.20/x
  3. Step 3: Cross multiply
    131,042.40x = 196,612.20 × 52,213.20
  4. Step 4: Simplify right side
    131,042.40x = 10,265,752,121.04
  5. Step 5: Solve for x
    x = 10,265,752,121.04/131,042.40
  6. Step 6: Final answer
    x = 78,339.16

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1.5x scale

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.