Home / 129,839.42-194,757.11-66,623.07

Finding the Fourth Proportional to 129,839.42, 194,757.11 and 66,623.07

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Solution

The fourth proportional to 129,839.42, 194,757.11 and 66,623.07 is: 99,933.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839.42 : 194,757.11 = 66,623.07 : x
  2. Step 2: Convert to fraction form
    129,839.42/194,757.11 = 66,623.07/x
  3. Step 3: Cross multiply
    129,839.42x = 194,757.11 × 66,623.07
  4. Step 4: Simplify right side
    129,839.42x = 12,975,317,219.59
  5. Step 5: Solve for x
    x = 12,975,317,219.59/129,839.42
  6. Step 6: Final answer
    x = 99,933.57

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1.5x scale

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.