Home / 207,766.60-311,666.10-89,441.80

Finding the Fourth Proportional to 207,766.60, 311,666.10 and 89,441.80

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Solution

The fourth proportional to 207,766.60, 311,666.10 and 89,441.80 is: 134,169.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,766.60 : 311,666.10 = 89,441.80 : x
  2. Step 2: Convert to fraction form
    207,766.60/311,666.10 = 89,441.80/x
  3. Step 3: Cross multiply
    207,766.60x = 311,666.10 × 89,441.80
  4. Step 4: Simplify right side
    207,766.60x = 27,875,976,982.98
  5. Step 5: Solve for x
    x = 27,875,976,982.98/207,766.60
  6. Step 6: Final answer
    x = 134,169.67

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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.