Home / 140,340.36-193,667.43-76,676.79

Finding the Fourth Proportional to 140,340.36, 193,667.43 and 76,676.79

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Solution

The fourth proportional to 140,340.36, 193,667.43 and 76,676.79 is: 105,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,340.36 : 193,667.43 = 76,676.79 : x
  2. Step 2: Convert to fraction form
    140,340.36/193,667.43 = 76,676.79/x
  3. Step 3: Cross multiply
    140,340.36x = 193,667.43 × 76,676.79
  4. Step 4: Simplify right side
    140,340.36x = 14,849,796,859.95
  5. Step 5: Solve for x
    x = 14,849,796,859.95/140,340.36
  6. Step 6: Final answer
    x = 105,812.73

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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.