Home / 121,330.80-181,996.20-110,833.20

Finding the Fourth Proportional to 121,330.80, 181,996.20 and 110,833.20

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Solution

The fourth proportional to 121,330.80, 181,996.20 and 110,833.20 is: 166,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,330.80 : 181,996.20 = 110,833.20 : x
  2. Step 2: Convert to fraction form
    121,330.80/181,996.20 = 110,833.20/x
  3. Step 3: Cross multiply
    121,330.80x = 181,996.20 × 110,833.20
  4. Step 4: Simplify right side
    121,330.80x = 20,171,221,233.84
  5. Step 5: Solve for x
    x = 20,171,221,233.84/121,330.80
  6. Step 6: Final answer
    x = 166,249.80

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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.