Home / 172,276.12-258,480.06-67,168.36

Finding the Fourth Proportional to 172,276.12, 258,480.06 and 67,168.36

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Solution

The fourth proportional to 172,276.12, 258,480.06 and 67,168.36 is: 100,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,276.12 : 258,480.06 = 67,168.36 : x
  2. Step 2: Convert to fraction form
    172,276.12/258,480.06 = 67,168.36/x
  3. Step 3: Cross multiply
    172,276.12x = 258,480.06 × 67,168.36
  4. Step 4: Simplify right side
    172,276.12x = 17,361,681,722.90
  5. Step 5: Solve for x
    x = 17,361,681,722.90/172,276.12
  6. Step 6: Final answer
    x = 100,778.23

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1.5x scale

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.