Home / 100,905.75-151,371.18-34,340.76

Finding the Fourth Proportional to 100,905.75, 151,371.18 and 34,340.76

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Solution

The fourth proportional to 100,905.75, 151,371.18 and 34,340.76 is: 51,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,905.75 : 151,371.18 = 34,340.76 : x
  2. Step 2: Convert to fraction form
    100,905.75/151,371.18 = 34,340.76/x
  3. Step 3: Cross multiply
    100,905.75x = 151,371.18 × 34,340.76
  4. Step 4: Simplify right side
    100,905.75x = 5,198,201,363.30
  5. Step 5: Solve for x
    x = 5,198,201,363.30/100,905.75
  6. Step 6: Final answer
    x = 51,515.41

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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.