Home / 107,872.38-148,653.50-77,604.30

Finding the Fourth Proportional to 107,872.38, 148,653.50 and 77,604.30

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Solution

The fourth proportional to 107,872.38, 148,653.50 and 77,604.30 is: 106,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,872.38 : 148,653.50 = 77,604.30 : x
  2. Step 2: Convert to fraction form
    107,872.38/148,653.50 = 77,604.30/x
  3. Step 3: Cross multiply
    107,872.38x = 148,653.50 × 77,604.30
  4. Step 4: Simplify right side
    107,872.38x = 11,536,150,422.03
  5. Step 5: Solve for x
    x = 11,536,150,422.03/107,872.38
  6. Step 6: Final answer
    x = 106,942.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.