Home / 207,952.20-311,928.30-102,749.40

Finding the Fourth Proportional to 207,952.20, 311,928.30 and 102,749.40

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Solution

The fourth proportional to 207,952.20, 311,928.30 and 102,749.40 is: 154,124.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,952.20 : 311,928.30 = 102,749.40 : x
  2. Step 2: Convert to fraction form
    207,952.20/311,928.30 = 102,749.40/x
  3. Step 3: Cross multiply
    207,952.20x = 311,928.30 × 102,749.40
  4. Step 4: Simplify right side
    207,952.20x = 32,050,445,668.02
  5. Step 5: Solve for x
    x = 32,050,445,668.02/207,952.20
  6. Step 6: Final answer
    x = 154,124.10

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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.