Home / 170,718.40-256,077.60-81,926.20

Finding the Fourth Proportional to 170,718.40, 256,077.60 and 81,926.20

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Solution

The fourth proportional to 170,718.40, 256,077.60 and 81,926.20 is: 122,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,718.40 : 256,077.60 = 81,926.20 : x
  2. Step 2: Convert to fraction form
    170,718.40/256,077.60 = 81,926.20/x
  3. Step 3: Cross multiply
    170,718.40x = 256,077.60 × 81,926.20
  4. Step 4: Simplify right side
    170,718.40x = 20,979,464,673.12
  5. Step 5: Solve for x
    x = 20,979,464,673.12/170,718.40
  6. Step 6: Final answer
    x = 122,889.30

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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.