Home / 136,934.38-188,968.14-76,515.44

Finding the Fourth Proportional to 136,934.38, 188,968.14 and 76,515.44

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Solution

The fourth proportional to 136,934.38, 188,968.14 and 76,515.44 is: 105,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,934.38 : 188,968.14 = 76,515.44 : x
  2. Step 2: Convert to fraction form
    136,934.38/188,968.14 = 76,515.44/x
  3. Step 3: Cross multiply
    136,934.38x = 188,968.14 × 76,515.44
  4. Step 4: Simplify right side
    136,934.38x = 14,458,980,378.08
  5. Step 5: Solve for x
    x = 14,458,980,378.08/136,934.38
  6. Step 6: Final answer
    x = 105,590.58

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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.