Home / 172,122.60-258,378.30-132,853.80

Finding the Fourth Proportional to 172,122.60, 258,378.30 and 132,853.80

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Solution

The fourth proportional to 172,122.60, 258,378.30 and 132,853.80 is: 199,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,122.60 : 258,378.30 = 132,853.80 : x
  2. Step 2: Convert to fraction form
    172,122.60/258,378.30 = 132,853.80/x
  3. Step 3: Cross multiply
    172,122.60x = 258,378.30 × 132,853.80
  4. Step 4: Simplify right side
    172,122.60x = 34,326,538,992.54
  5. Step 5: Solve for x
    x = 34,326,538,992.54/172,122.60
  6. Step 6: Final answer
    x = 199,430.75

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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.