Home / 120,928.20-181,392.74-36,689.09

Finding the Fourth Proportional to 120,928.20, 181,392.74 and 36,689.09

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Solution

The fourth proportional to 120,928.20, 181,392.74 and 36,689.09 is: 55,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,928.20 : 181,392.74 = 36,689.09 : x
  2. Step 2: Convert to fraction form
    120,928.20/181,392.74 = 36,689.09/x
  3. Step 3: Cross multiply
    120,928.20x = 181,392.74 × 36,689.09
  4. Step 4: Simplify right side
    120,928.20x = 6,655,133,472.80
  5. Step 5: Solve for x
    x = 6,655,133,472.80/120,928.20
  6. Step 6: Final answer
    x = 55,033.76

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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.