Home / 140,655.43-194,106.33-76,991.86

Finding the Fourth Proportional to 140,655.43, 194,106.33 and 76,991.86

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Solution

The fourth proportional to 140,655.43, 194,106.33 and 76,991.86 is: 106,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,655.43 : 194,106.33 = 76,991.86 : x
  2. Step 2: Convert to fraction form
    140,655.43/194,106.33 = 76,991.86/x
  3. Step 3: Cross multiply
    140,655.43x = 194,106.33 × 76,991.86
  4. Step 4: Simplify right side
    140,655.43x = 14,944,607,384.47
  5. Step 5: Solve for x
    x = 14,944,607,384.47/140,655.43
  6. Step 6: Final answer
    x = 106,249.77

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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.