Home / 209,131.22-313,439.85-96,659.28

Finding the Fourth Proportional to 209,131.22, 313,439.85 and 96,659.28

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Solution

The fourth proportional to 209,131.22, 313,439.85 and 96,659.28 is: 144,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,131.22 : 313,439.85 = 96,659.28 : x
  2. Step 2: Convert to fraction form
    209,131.22/313,439.85 = 96,659.28/x
  3. Step 3: Cross multiply
    209,131.22x = 313,439.85 × 96,659.28
  4. Step 4: Simplify right side
    209,131.22x = 30,296,870,224.31
  5. Step 5: Solve for x
    x = 30,296,870,224.31/209,131.22
  6. Step 6: Final answer
    x = 144,870.15

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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.