Home / 129,429.81-194,191.43-45,202.37

Finding the Fourth Proportional to 129,429.81, 194,191.43 and 45,202.37

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Solution

The fourth proportional to 129,429.81, 194,191.43 and 45,202.37 is: 67,819.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,429.81 : 194,191.43 = 45,202.37 : x
  2. Step 2: Convert to fraction form
    129,429.81/194,191.43 = 45,202.37/x
  3. Step 3: Cross multiply
    129,429.81x = 194,191.43 × 45,202.37
  4. Step 4: Simplify right side
    129,429.81x = 8,777,911,672.72
  5. Step 5: Solve for x
    x = 8,777,911,672.72/129,429.81
  6. Step 6: Final answer
    x = 67,819.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.