Home / 136,468.14-188,326.42-79,118.60

Finding the Fourth Proportional to 136,468.14, 188,326.42 and 79,118.60

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Solution

The fourth proportional to 136,468.14, 188,326.42 and 79,118.60 is: 109,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,468.14 : 188,326.42 = 79,118.60 : x
  2. Step 2: Convert to fraction form
    136,468.14/188,326.42 = 79,118.60/x
  3. Step 3: Cross multiply
    136,468.14x = 188,326.42 × 79,118.60
  4. Step 4: Simplify right side
    136,468.14x = 14,900,122,693.41
  5. Step 5: Solve for x
    x = 14,900,122,693.41/136,468.14
  6. Step 6: Final answer
    x = 109,183.89

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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.