Home / 100,181.04-138,247.37-54,860.94

Finding the Fourth Proportional to 100,181.04, 138,247.37 and 54,860.94

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Solution

The fourth proportional to 100,181.04, 138,247.37 and 54,860.94 is: 75,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,181.04 : 138,247.37 = 54,860.94 : x
  2. Step 2: Convert to fraction form
    100,181.04/138,247.37 = 54,860.94/x
  3. Step 3: Cross multiply
    100,181.04x = 138,247.37 × 54,860.94
  4. Step 4: Simplify right side
    100,181.04x = 7,584,380,396.42
  5. Step 5: Solve for x
    x = 7,584,380,396.42/100,181.04
  6. Step 6: Final answer
    x = 75,706.74

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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.