Home / 223,121.50-307,876.69-131,244.95

Finding the Fourth Proportional to 223,121.50, 307,876.69 and 131,244.95

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Solution

The fourth proportional to 223,121.50, 307,876.69 and 131,244.95 is: 181,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,121.50 : 307,876.69 = 131,244.95 : x
  2. Step 2: Convert to fraction form
    223,121.50/307,876.69 = 131,244.95/x
  3. Step 3: Cross multiply
    223,121.50x = 307,876.69 × 131,244.95
  4. Step 4: Simplify right side
    223,121.50x = 40,407,258,589.61
  5. Step 5: Solve for x
    x = 40,407,258,589.61/223,121.50
  6. Step 6: Final answer
    x = 181,099.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.