Home / 151,912.82-228,012.24-77,086.70

Finding the Fourth Proportional to 151,912.82, 228,012.24 and 77,086.70

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Solution

The fourth proportional to 151,912.82, 228,012.24 and 77,086.70 is: 115,702.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,912.82 : 228,012.24 = 77,086.70 : x
  2. Step 2: Convert to fraction form
    151,912.82/228,012.24 = 77,086.70/x
  3. Step 3: Cross multiply
    151,912.82x = 228,012.24 × 77,086.70
  4. Step 4: Simplify right side
    151,912.82x = 17,576,711,141.21
  5. Step 5: Solve for x
    x = 17,576,711,141.21/151,912.82
  6. Step 6: Final answer
    x = 115,702.62

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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.