Home / 129,845.80-194,622.90-54,953.20

Finding the Fourth Proportional to 129,845.80, 194,622.90 and 54,953.20

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Solution

The fourth proportional to 129,845.80, 194,622.90 and 54,953.20 is: 82,368.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845.80 : 194,622.90 = 54,953.20 : x
  2. Step 2: Convert to fraction form
    129,845.80/194,622.90 = 54,953.20/x
  3. Step 3: Cross multiply
    129,845.80x = 194,622.90 × 54,953.20
  4. Step 4: Simplify right side
    129,845.80x = 10,695,151,148.28
  5. Step 5: Solve for x
    x = 10,695,151,148.28/129,845.80
  6. Step 6: Final answer
    x = 82,368.09

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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.