Home / 136,781.51-188,774.49-113,770.73

Finding the Fourth Proportional to 136,781.51, 188,774.49 and 113,770.73

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Solution

The fourth proportional to 136,781.51, 188,774.49 and 113,770.73 is: 157,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,781.51 : 188,774.49 = 113,770.73 : x
  2. Step 2: Convert to fraction form
    136,781.51/188,774.49 = 113,770.73/x
  3. Step 3: Cross multiply
    136,781.51x = 188,774.49 × 113,770.73
  4. Step 4: Simplify right side
    136,781.51x = 21,477,010,588.81
  5. Step 5: Solve for x
    x = 21,477,010,588.81/136,781.51
  6. Step 6: Final answer
    x = 157,016.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.