Home / 67,181.41-100,179.42-66,581.83

Finding the Fourth Proportional to 67,181.41, 100,179.42 and 66,581.83

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Solution

The fourth proportional to 67,181.41, 100,179.42 and 66,581.83 is: 99,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,181.41 : 100,179.42 = 66,581.83 : x
  2. Step 2: Convert to fraction form
    67,181.41/100,179.42 = 66,581.83/x
  3. Step 3: Cross multiply
    67,181.41x = 100,179.42 × 66,581.83
  4. Step 4: Simplify right side
    67,181.41x = 6,670,128,945.48
  5. Step 5: Solve for x
    x = 6,670,128,945.48/67,181.41
  6. Step 6: Final answer
    x = 99,285.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.