Home / 204,020.12-306,079.38-70,881

Finding the Fourth Proportional to 204,020.12, 306,079.38 and 70,881

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Solution

The fourth proportional to 204,020.12, 306,079.38 and 70,881 is: 106,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,020.12 : 306,079.38 = 70,881 : x
  2. Step 2: Convert to fraction form
    204,020.12/306,079.38 = 70,881/x
  3. Step 3: Cross multiply
    204,020.12x = 306,079.38 × 70,881
  4. Step 4: Simplify right side
    204,020.12x = 21,695,212,533.78
  5. Step 5: Solve for x
    x = 21,695,212,533.78/204,020.12
  6. Step 6: Final answer
    x = 106,338.59

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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.