Home / 170,134.23-255,189.06-81,363.90

Finding the Fourth Proportional to 170,134.23, 255,189.06 and 81,363.90

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Solution

The fourth proportional to 170,134.23, 255,189.06 and 81,363.90 is: 122,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,134.23 : 255,189.06 = 81,363.90 : x
  2. Step 2: Convert to fraction form
    170,134.23/255,189.06 = 81,363.90/x
  3. Step 3: Cross multiply
    170,134.23x = 255,189.06 × 81,363.90
  4. Step 4: Simplify right side
    170,134.23x = 20,763,177,158.93
  5. Step 5: Solve for x
    x = 20,763,177,158.93/170,134.23
  6. Step 6: Final answer
    x = 122,039.97

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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.