Home / 129,942.90-194,933.97-55,063.35

Finding the Fourth Proportional to 129,942.90, 194,933.97 and 55,063.35

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Solution

The fourth proportional to 129,942.90, 194,933.97 and 55,063.35 is: 82,603.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,942.90 : 194,933.97 = 55,063.35 : x
  2. Step 2: Convert to fraction form
    129,942.90/194,933.97 = 55,063.35/x
  3. Step 3: Cross multiply
    129,942.90x = 194,933.97 × 55,063.35
  4. Step 4: Simplify right side
    129,942.90x = 10,733,717,417.00
  5. Step 5: Solve for x
    x = 10,733,717,417.00/129,942.90
  6. Step 6: Final answer
    x = 82,603.34

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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.