Home / 121,212.11-181,828.70-36,991.25

Finding the Fourth Proportional to 121,212.11, 181,828.70 and 36,991.25

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Solution

The fourth proportional to 121,212.11, 181,828.70 and 36,991.25 is: 55,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.11 : 181,828.70 = 36,991.25 : x
  2. Step 2: Convert to fraction form
    121,212.11/181,828.70 = 36,991.25/x
  3. Step 3: Cross multiply
    121,212.11x = 181,828.70 × 36,991.25
  4. Step 4: Simplify right side
    121,212.11x = 6,726,070,625.35
  5. Step 5: Solve for x
    x = 6,726,070,625.35/121,212.11
  6. Step 6: Final answer
    x = 55,490.09

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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.