Home / 136,291.09-188,081.71-75,860.43

Finding the Fourth Proportional to 136,291.09, 188,081.71 and 75,860.43

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Solution

The fourth proportional to 136,291.09, 188,081.71 and 75,860.43 is: 104,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,291.09 : 188,081.71 = 75,860.43 : x
  2. Step 2: Convert to fraction form
    136,291.09/188,081.71 = 75,860.43/x
  3. Step 3: Cross multiply
    136,291.09x = 188,081.71 × 75,860.43
  4. Step 4: Simplify right side
    136,291.09x = 14,267,959,486.64
  5. Step 5: Solve for x
    x = 14,267,959,486.64/136,291.09
  6. Step 6: Final answer
    x = 104,687.40

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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.