Home / 207,968.20-311,952.30-102,765.40

Finding the Fourth Proportional to 207,968.20, 311,952.30 and 102,765.40

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Solution

The fourth proportional to 207,968.20, 311,952.30 and 102,765.40 is: 154,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,968.20 : 311,952.30 = 102,765.40 : x
  2. Step 2: Convert to fraction form
    207,968.20/311,952.30 = 102,765.40/x
  3. Step 3: Cross multiply
    207,968.20x = 311,952.30 × 102,765.40
  4. Step 4: Simplify right side
    207,968.20x = 32,057,902,890.42
  5. Step 5: Solve for x
    x = 32,057,902,890.42/207,968.20
  6. Step 6: Final answer
    x = 154,148.10

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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.