Home / 180,981.80-271,505.10-75,811.40

Finding the Fourth Proportional to 180,981.80, 271,505.10 and 75,811.40

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Solution

The fourth proportional to 180,981.80, 271,505.10 and 75,811.40 is: 113,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,981.80 : 271,505.10 = 75,811.40 : x
  2. Step 2: Convert to fraction form
    180,981.80/271,505.10 = 75,811.40/x
  3. Step 3: Cross multiply
    180,981.80x = 271,505.10 × 75,811.40
  4. Step 4: Simplify right side
    180,981.80x = 20,583,181,738.14
  5. Step 5: Solve for x
    x = 20,583,181,738.14/180,981.80
  6. Step 6: Final answer
    x = 113,730.67

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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.