Home / 121,231.13-181,842.44-36,987.89

Finding the Fourth Proportional to 121,231.13, 181,842.44 and 36,987.89

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Solution

The fourth proportional to 121,231.13, 181,842.44 and 36,987.89 is: 55,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,231.13 : 181,842.44 = 36,987.89 : x
  2. Step 2: Convert to fraction form
    121,231.13/181,842.44 = 36,987.89/x
  3. Step 3: Cross multiply
    121,231.13x = 181,842.44 × 36,987.89
  4. Step 4: Simplify right side
    121,231.13x = 6,725,967,073.90
  5. Step 5: Solve for x
    x = 6,725,967,073.90/121,231.13
  6. Step 6: Final answer
    x = 55,480.53

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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.