Home / 138,905.85-208,361.84-96,169.17

Finding the Fourth Proportional to 138,905.85, 208,361.84 and 96,169.17

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Solution

The fourth proportional to 138,905.85, 208,361.84 and 96,169.17 is: 144,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,905.85 : 208,361.84 = 96,169.17 : x
  2. Step 2: Convert to fraction form
    138,905.85/208,361.84 = 96,169.17/x
  3. Step 3: Cross multiply
    138,905.85x = 208,361.84 × 96,169.17
  4. Step 4: Simplify right side
    138,905.85x = 20,037,984,731.63
  5. Step 5: Solve for x
    x = 20,037,984,731.63/138,905.85
  6. Step 6: Final answer
    x = 144,255.87

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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.