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Finding the Fourth Proportional to 129,504.81, 194,277.98 and 54,635.98

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Solution

The fourth proportional to 129,504.81, 194,277.98 and 54,635.98 is: 81,962.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,504.81 : 194,277.98 = 54,635.98 : x
  2. Step 2: Convert to fraction form
    129,504.81/194,277.98 = 54,635.98/x
  3. Step 3: Cross multiply
    129,504.81x = 194,277.98 × 54,635.98
  4. Step 4: Simplify right side
    129,504.81x = 10,614,568,280.34
  5. Step 5: Solve for x
    x = 10,614,568,280.34/129,504.81
  6. Step 6: Final answer
    x = 81,962.73

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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.