Home / 170,906.15-256,451.16-71,135.21

Finding the Fourth Proportional to 170,906.15, 256,451.16 and 71,135.21

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Solution

The fourth proportional to 170,906.15, 256,451.16 and 71,135.21 is: 106,741.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,906.15 : 256,451.16 = 71,135.21 : x
  2. Step 2: Convert to fraction form
    170,906.15/256,451.16 = 71,135.21/x
  3. Step 3: Cross multiply
    170,906.15x = 256,451.16 × 71,135.21
  4. Step 4: Simplify right side
    170,906.15x = 18,242,707,121.34
  5. Step 5: Solve for x
    x = 18,242,707,121.34/170,906.15
  6. Step 6: Final answer
    x = 106,741.08

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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.