Home / 121,261.30-181,891.95-110,763.70

Finding the Fourth Proportional to 121,261.30, 181,891.95 and 110,763.70

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Solution

The fourth proportional to 121,261.30, 181,891.95 and 110,763.70 is: 166,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,261.30 : 181,891.95 = 110,763.70 : x
  2. Step 2: Convert to fraction form
    121,261.30/181,891.95 = 110,763.70/x
  3. Step 3: Cross multiply
    121,261.30x = 181,891.95 × 110,763.70
  4. Step 4: Simplify right side
    121,261.30x = 20,147,025,382.22
  5. Step 5: Solve for x
    x = 20,147,025,382.22/121,261.30
  6. Step 6: Final answer
    x = 166,145.55

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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.