Home / 172,034.10-257,540.85-127,856.70

Finding the Fourth Proportional to 172,034.10, 257,540.85 and 127,856.70

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Solution

The fourth proportional to 172,034.10, 257,540.85 and 127,856.70 is: 191,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,034.10 : 257,540.85 = 127,856.70 : x
  2. Step 2: Convert to fraction form
    172,034.10/257,540.85 = 127,856.70/x
  3. Step 3: Cross multiply
    172,034.10x = 257,540.85 × 127,856.70
  4. Step 4: Simplify right side
    172,034.10x = 32,928,323,196.20
  5. Step 5: Solve for x
    x = 32,928,323,196.20/172,034.10
  6. Step 6: Final answer
    x = 191,405.79

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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.