Home / 134,143.92-185,105.88-80,418.96

Finding the Fourth Proportional to 134,143.92, 185,105.88 and 80,418.96

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Solution

The fourth proportional to 134,143.92, 185,105.88 and 80,418.96 is: 110,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,143.92 : 185,105.88 = 80,418.96 : x
  2. Step 2: Convert to fraction form
    134,143.92/185,105.88 = 80,418.96/x
  3. Step 3: Cross multiply
    134,143.92x = 185,105.88 × 80,418.96
  4. Step 4: Simplify right side
    134,143.92x = 14,886,022,359.48
  5. Step 5: Solve for x
    x = 14,886,022,359.48/134,143.92
  6. Step 6: Final answer
    x = 110,970.53

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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.