Home / 207,976.40-311,964.59-67,735.02

Finding the Fourth Proportional to 207,976.40, 311,964.59 and 67,735.02

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Solution

The fourth proportional to 207,976.40, 311,964.59 and 67,735.02 is: 101,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,976.40 : 311,964.59 = 67,735.02 : x
  2. Step 2: Convert to fraction form
    207,976.40/311,964.59 = 67,735.02/x
  3. Step 3: Cross multiply
    207,976.40x = 311,964.59 × 67,735.02
  4. Step 4: Simplify right side
    207,976.40x = 21,130,929,082.15
  5. Step 5: Solve for x
    x = 21,130,929,082.15/207,976.40
  6. Step 6: Final answer
    x = 101,602.53

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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.