Home / 140,716.74-194,189.40-76,186.65

Finding the Fourth Proportional to 140,716.74, 194,189.40 and 76,186.65

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Solution

The fourth proportional to 140,716.74, 194,189.40 and 76,186.65 is: 105,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,716.74 : 194,189.40 = 76,186.65 : x
  2. Step 2: Convert to fraction form
    140,716.74/194,189.40 = 76,186.65/x
  3. Step 3: Cross multiply
    140,716.74x = 194,189.40 × 76,186.65
  4. Step 4: Simplify right side
    140,716.74x = 14,794,639,851.51
  5. Step 5: Solve for x
    x = 14,794,639,851.51/140,716.74
  6. Step 6: Final answer
    x = 105,137.74

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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.