Home / 170,856.06-256,138.20-120,778.62

Finding the Fourth Proportional to 170,856.06, 256,138.20 and 120,778.62

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Solution

The fourth proportional to 170,856.06, 256,138.20 and 120,778.62 is: 181,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,856.06 : 256,138.20 = 120,778.62 : x
  2. Step 2: Convert to fraction form
    170,856.06/256,138.20 = 120,778.62/x
  3. Step 3: Cross multiply
    170,856.06x = 256,138.20 × 120,778.62
  4. Step 4: Simplify right side
    170,856.06x = 30,936,018,325.28
  5. Step 5: Solve for x
    x = 30,936,018,325.28/170,856.06
  6. Step 6: Final answer
    x = 181,064.80

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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.