Home / 109,721.90-164,568.26-43,144.15

Finding the Fourth Proportional to 109,721.90, 164,568.26 and 43,144.15

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Solution

The fourth proportional to 109,721.90, 164,568.26 and 43,144.15 is: 64,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,721.90 : 164,568.26 = 43,144.15 : x
  2. Step 2: Convert to fraction form
    109,721.90/164,568.26 = 43,144.15/x
  3. Step 3: Cross multiply
    109,721.90x = 164,568.26 × 43,144.15
  4. Step 4: Simplify right side
    109,721.90x = 7,100,157,694.68
  5. Step 5: Solve for x
    x = 7,100,157,694.68/109,721.90
  6. Step 6: Final answer
    x = 64,710.49

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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.