Home / 103,171.46-154,757.15-68,102.90

Finding the Fourth Proportional to 103,171.46, 154,757.15 and 68,102.90

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Solution

The fourth proportional to 103,171.46, 154,757.15 and 68,102.90 is: 102,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,171.46 : 154,757.15 = 68,102.90 : x
  2. Step 2: Convert to fraction form
    103,171.46/154,757.15 = 68,102.90/x
  3. Step 3: Cross multiply
    103,171.46x = 154,757.15 × 68,102.90
  4. Step 4: Simplify right side
    103,171.46x = 10,539,410,710.74
  5. Step 5: Solve for x
    x = 10,539,410,710.74/103,171.46
  6. Step 6: Final answer
    x = 102,154.32

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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.