Home / 129,890.70-194,908.95-54,998.10

Finding the Fourth Proportional to 129,890.70, 194,908.95 and 54,998.10

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Solution

The fourth proportional to 129,890.70, 194,908.95 and 54,998.10 is: 82,528.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,890.70 : 194,908.95 = 54,998.10 : x
  2. Step 2: Convert to fraction form
    129,890.70/194,908.95 = 54,998.10/x
  3. Step 3: Cross multiply
    129,890.70x = 194,908.95 × 54,998.10
  4. Step 4: Simplify right side
    129,890.70x = 10,719,621,923.00
  5. Step 5: Solve for x
    x = 10,719,621,923.00/129,890.70
  6. Step 6: Final answer
    x = 82,528.02

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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.