Home / 207,973.91-311,982.73-67,743.47

Finding the Fourth Proportional to 207,973.91, 311,982.73 and 67,743.47

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Solution

The fourth proportional to 207,973.91, 311,982.73 and 67,743.47 is: 101,622.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,973.91 : 311,982.73 = 67,743.47 : x
  2. Step 2: Convert to fraction form
    207,973.91/311,982.73 = 67,743.47/x
  3. Step 3: Cross multiply
    207,973.91x = 311,982.73 × 67,743.47
  4. Step 4: Simplify right side
    207,973.91x = 21,134,791,150.36
  5. Step 5: Solve for x
    x = 21,134,791,150.36/207,973.91
  6. Step 6: Final answer
    x = 101,622.32

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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.