Home / 118,372.12-163,331.82-67,381.84

Finding the Fourth Proportional to 118,372.12, 163,331.82 and 67,381.84

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Solution

The fourth proportional to 118,372.12, 163,331.82 and 67,381.84 is: 92,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,372.12 : 163,331.82 = 67,381.84 : x
  2. Step 2: Convert to fraction form
    118,372.12/163,331.82 = 67,381.84/x
  3. Step 3: Cross multiply
    118,372.12x = 163,331.82 × 67,381.84
  4. Step 4: Simplify right side
    118,372.12x = 11,005,598,562.15
  5. Step 5: Solve for x
    x = 11,005,598,562.15/118,372.12
  6. Step 6: Final answer
    x = 92,974.58

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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.