Home / 140,742.96-194,223.24-77,080.56

Finding the Fourth Proportional to 140,742.96, 194,223.24 and 77,080.56

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Solution

The fourth proportional to 140,742.96, 194,223.24 and 77,080.56 is: 106,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,742.96 : 194,223.24 = 77,080.56 : x
  2. Step 2: Convert to fraction form
    140,742.96/194,223.24 = 77,080.56/x
  3. Step 3: Cross multiply
    140,742.96x = 194,223.24 × 77,080.56
  4. Step 4: Simplify right side
    140,742.96x = 14,970,836,104.21
  5. Step 5: Solve for x
    x = 14,970,836,104.21/140,742.96
  6. Step 6: Final answer
    x = 106,370.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.