Home / 221,096.46-331,563.09-78,903.69

Finding the Fourth Proportional to 221,096.46, 331,563.09 and 78,903.69

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Solution

The fourth proportional to 221,096.46, 331,563.09 and 78,903.69 is: 118,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,096.46 : 331,563.09 = 78,903.69 : x
  2. Step 2: Convert to fraction form
    221,096.46/331,563.09 = 78,903.69/x
  3. Step 3: Cross multiply
    221,096.46x = 331,563.09 × 78,903.69
  4. Step 4: Simplify right side
    221,096.46x = 26,161,551,268.80
  5. Step 5: Solve for x
    x = 26,161,551,268.80/221,096.46
  6. Step 6: Final answer
    x = 118,326.41

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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.