Home / 150,722.22-207,991.29-85,309.65

Finding the Fourth Proportional to 150,722.22, 207,991.29 and 85,309.65

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Solution

The fourth proportional to 150,722.22, 207,991.29 and 85,309.65 is: 117,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,722.22 : 207,991.29 = 85,309.65 : x
  2. Step 2: Convert to fraction form
    150,722.22/207,991.29 = 85,309.65/x
  3. Step 3: Cross multiply
    150,722.22x = 207,991.29 × 85,309.65
  4. Step 4: Simplify right side
    150,722.22x = 17,743,664,152.95
  5. Step 5: Solve for x
    x = 17,743,664,152.95/150,722.22
  6. Step 6: Final answer
    x = 117,724.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.