Home / 170,727.40-256,091.10-72,218.60

Finding the Fourth Proportional to 170,727.40, 256,091.10 and 72,218.60

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Solution

The fourth proportional to 170,727.40, 256,091.10 and 72,218.60 is: 108,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,727.40 : 256,091.10 = 72,218.60 : x
  2. Step 2: Convert to fraction form
    170,727.40/256,091.10 = 72,218.60/x
  3. Step 3: Cross multiply
    170,727.40x = 256,091.10 × 72,218.60
  4. Step 4: Simplify right side
    170,727.40x = 18,494,540,714.46
  5. Step 5: Solve for x
    x = 18,494,540,714.46/170,727.40
  6. Step 6: Final answer
    x = 108,327.90

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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.