Home / 197,152.81-271,892.26-129,144.97

Finding the Fourth Proportional to 197,152.81, 271,892.26 and 129,144.97

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Solution

The fourth proportional to 197,152.81, 271,892.26 and 129,144.97 is: 178,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,152.81 : 271,892.26 = 129,144.97 : x
  2. Step 2: Convert to fraction form
    197,152.81/271,892.26 = 129,144.97/x
  3. Step 3: Cross multiply
    197,152.81x = 271,892.26 × 129,144.97
  4. Step 4: Simplify right side
    197,152.81x = 35,113,517,760.93
  5. Step 5: Solve for x
    x = 35,113,517,760.93/197,152.81
  6. Step 6: Final answer
    x = 178,103.05

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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.