Home / 121,231.14-181,842.42-36,987.90

Finding the Fourth Proportional to 121,231.14, 181,842.42 and 36,987.90

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Solution

The fourth proportional to 121,231.14, 181,842.42 and 36,987.90 is: 55,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,231.14 : 181,842.42 = 36,987.90 : x
  2. Step 2: Convert to fraction form
    121,231.14/181,842.42 = 36,987.90/x
  3. Step 3: Cross multiply
    121,231.14x = 181,842.42 × 36,987.90
  4. Step 4: Simplify right side
    121,231.14x = 6,725,969,246.72
  5. Step 5: Solve for x
    x = 6,725,969,246.72/121,231.14
  6. Step 6: Final answer
    x = 55,480.54

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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.