Home / 172,133.28-258,100.61-66,829.23

Finding the Fourth Proportional to 172,133.28, 258,100.61 and 66,829.23

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Solution

The fourth proportional to 172,133.28, 258,100.61 and 66,829.23 is: 100,205.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,133.28 : 258,100.61 = 66,829.23 : x
  2. Step 2: Convert to fraction form
    172,133.28/258,100.61 = 66,829.23/x
  3. Step 3: Cross multiply
    172,133.28x = 258,100.61 × 66,829.23
  4. Step 4: Simplify right side
    172,133.28x = 17,248,664,694.68
  5. Step 5: Solve for x
    x = 17,248,664,694.68/172,133.28
  6. Step 6: Final answer
    x = 100,205.29

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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.