Home / 140,703.72-194,169.66-76,171.51

Finding the Fourth Proportional to 140,703.72, 194,169.66 and 76,171.51

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Solution

The fourth proportional to 140,703.72, 194,169.66 and 76,171.51 is: 105,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703.72 : 194,169.66 = 76,171.51 : x
  2. Step 2: Convert to fraction form
    140,703.72/194,169.66 = 76,171.51/x
  3. Step 3: Cross multiply
    140,703.72x = 194,169.66 × 76,171.51
  4. Step 4: Simplify right side
    140,703.72x = 14,790,196,198.39
  5. Step 5: Solve for x
    x = 14,790,196,198.39/140,703.72
  6. Step 6: Final answer
    x = 105,115.89

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1.5x scale

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.