Home / 143,031.35-197,387.79-82,600.90

Finding the Fourth Proportional to 143,031.35, 197,387.79 and 82,600.90

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Solution

The fourth proportional to 143,031.35, 197,387.79 and 82,600.90 is: 113,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,031.35 : 197,387.79 = 82,600.90 : x
  2. Step 2: Convert to fraction form
    143,031.35/197,387.79 = 82,600.90/x
  3. Step 3: Cross multiply
    143,031.35x = 197,387.79 × 82,600.90
  4. Step 4: Simplify right side
    143,031.35x = 16,304,408,299.79
  5. Step 5: Solve for x
    x = 16,304,408,299.79/143,031.35
  6. Step 6: Final answer
    x = 113,991.85

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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.