Home / 210,489.03-315,589.41-75,550.11

Finding the Fourth Proportional to 210,489.03, 315,589.41 and 75,550.11

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Solution

The fourth proportional to 210,489.03, 315,589.41 and 75,550.11 is: 113,273.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,489.03 : 315,589.41 = 75,550.11 : x
  2. Step 2: Convert to fraction form
    210,489.03/315,589.41 = 75,550.11/x
  3. Step 3: Cross multiply
    210,489.03x = 315,589.41 × 75,550.11
  4. Step 4: Simplify right side
    210,489.03x = 23,842,814,640.34
  5. Step 5: Solve for x
    x = 23,842,814,640.34/210,489.03
  6. Step 6: Final answer
    x = 113,273.43

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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.