Home / 197,150.59-271,972.97-129,138.13

Finding the Fourth Proportional to 197,150.59, 271,972.97 and 129,138.13

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Solution

The fourth proportional to 197,150.59, 271,972.97 and 129,138.13 is: 178,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,150.59 : 271,972.97 = 129,138.13 : x
  2. Step 2: Convert to fraction form
    197,150.59/271,972.97 = 129,138.13/x
  3. Step 3: Cross multiply
    197,150.59x = 271,972.97 × 129,138.13
  4. Step 4: Simplify right side
    197,150.59x = 35,122,079,396.48
  5. Step 5: Solve for x
    x = 35,122,079,396.48/197,150.59
  6. Step 6: Final answer
    x = 178,148.49

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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.