Home / 170,916.20-256,419.10-65,738.60

Finding the Fourth Proportional to 170,916.20, 256,419.10 and 65,738.60

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Solution

The fourth proportional to 170,916.20, 256,419.10 and 65,738.60 is: 98,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,916.20 : 256,419.10 = 65,738.60 : x
  2. Step 2: Convert to fraction form
    170,916.20/256,419.10 = 65,738.60/x
  3. Step 3: Cross multiply
    170,916.20x = 256,419.10 × 65,738.60
  4. Step 4: Simplify right side
    170,916.20x = 16,856,632,647.26
  5. Step 5: Solve for x
    x = 16,856,632,647.26/170,916.20
  6. Step 6: Final answer
    x = 98,625.13

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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.