Home / 100,942.70-151,377.60-51,006.20

Finding the Fourth Proportional to 100,942.70, 151,377.60 and 51,006.20

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Solution

The fourth proportional to 100,942.70, 151,377.60 and 51,006.20 is: 76,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,942.70 : 151,377.60 = 51,006.20 : x
  2. Step 2: Convert to fraction form
    100,942.70/151,377.60 = 51,006.20/x
  3. Step 3: Cross multiply
    100,942.70x = 151,377.60 × 51,006.20
  4. Step 4: Simplify right side
    100,942.70x = 7,721,196,141.12
  5. Step 5: Solve for x
    x = 7,721,196,141.12/100,942.70
  6. Step 6: Final answer
    x = 76,490.88

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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.