Home / 180,739.70-271,057.71-69,905.78

Finding the Fourth Proportional to 180,739.70, 271,057.71 and 69,905.78

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Solution

The fourth proportional to 180,739.70, 271,057.71 and 69,905.78 is: 104,838.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,739.70 : 271,057.71 = 69,905.78 : x
  2. Step 2: Convert to fraction form
    180,739.70/271,057.71 = 69,905.78/x
  3. Step 3: Cross multiply
    180,739.70x = 271,057.71 × 69,905.78
  4. Step 4: Simplify right side
    180,739.70x = 18,948,500,642.56
  5. Step 5: Solve for x
    x = 18,948,500,642.56/180,739.70
  6. Step 6: Final answer
    x = 104,838.62

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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.