Home / 170,825.23-256,268.93-85,480.66

Finding the Fourth Proportional to 170,825.23, 256,268.93 and 85,480.66

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Solution

The fourth proportional to 170,825.23, 256,268.93 and 85,480.66 is: 128,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,825.23 : 256,268.93 = 85,480.66 : x
  2. Step 2: Convert to fraction form
    170,825.23/256,268.93 = 85,480.66/x
  3. Step 3: Cross multiply
    170,825.23x = 256,268.93 × 85,480.66
  4. Step 4: Simplify right side
    170,825.23x = 21,906,037,273.89
  5. Step 5: Solve for x
    x = 21,906,037,273.89/170,825.23
  6. Step 6: Final answer
    x = 128,236.54

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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.