Home / 207,635.40-311,598.90-89,391.60

Finding the Fourth Proportional to 207,635.40, 311,598.90 and 89,391.60

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Solution

The fourth proportional to 207,635.40, 311,598.90 and 89,391.60 is: 134,150.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,635.40 : 311,598.90 = 89,391.60 : x
  2. Step 2: Convert to fraction form
    207,635.40/311,598.90 = 89,391.60/x
  3. Step 3: Cross multiply
    207,635.40x = 311,598.90 × 89,391.60
  4. Step 4: Simplify right side
    207,635.40x = 27,854,324,229.24
  5. Step 5: Solve for x
    x = 27,854,324,229.24/207,635.40
  6. Step 6: Final answer
    x = 134,150.17

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1.5x scale

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.