Home / 207,749.80-311,721.90-89,522.20

Finding the Fourth Proportional to 207,749.80, 311,721.90 and 89,522.20

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Solution

The fourth proportional to 207,749.80, 311,721.90 and 89,522.20 is: 134,325.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,749.80 : 311,721.90 = 89,522.20 : x
  2. Step 2: Convert to fraction form
    207,749.80/311,721.90 = 89,522.20/x
  3. Step 3: Cross multiply
    207,749.80x = 311,721.90 × 89,522.20
  4. Step 4: Simplify right side
    207,749.80x = 27,906,030,276.18
  5. Step 5: Solve for x
    x = 27,906,030,276.18/207,749.80
  6. Step 6: Final answer
    x = 134,325.18

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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.