Home / 129,186.81-193,758.35-35,692.56

Finding the Fourth Proportional to 129,186.81, 193,758.35 and 35,692.56

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Solution

The fourth proportional to 129,186.81, 193,758.35 and 35,692.56 is: 53,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,186.81 : 193,758.35 = 35,692.56 : x
  2. Step 2: Convert to fraction form
    129,186.81/193,758.35 = 35,692.56/x
  3. Step 3: Cross multiply
    129,186.81x = 193,758.35 × 35,692.56
  4. Step 4: Simplify right side
    129,186.81x = 6,915,731,354.41
  5. Step 5: Solve for x
    x = 6,915,731,354.41/129,186.81
  6. Step 6: Final answer
    x = 53,532.80

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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.