Home / 129,692.85-194,559.38-54,813.31

Finding the Fourth Proportional to 129,692.85, 194,559.38 and 54,813.31

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Solution

The fourth proportional to 129,692.85, 194,559.38 and 54,813.31 is: 82,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,692.85 : 194,559.38 = 54,813.31 : x
  2. Step 2: Convert to fraction form
    129,692.85/194,559.38 = 54,813.31/x
  3. Step 3: Cross multiply
    129,692.85x = 194,559.38 × 54,813.31
  4. Step 4: Simplify right side
    129,692.85x = 10,664,443,362.76
  5. Step 5: Solve for x
    x = 10,664,443,362.76/129,692.85
  6. Step 6: Final answer
    x = 82,228.46

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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.