Home / 108,086.94-162,376.45-78,193.38

Finding the Fourth Proportional to 108,086.94, 162,376.45 and 78,193.38

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Solution

The fourth proportional to 108,086.94, 162,376.45 and 78,193.38 is: 117,468.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,086.94 : 162,376.45 = 78,193.38 : x
  2. Step 2: Convert to fraction form
    108,086.94/162,376.45 = 78,193.38/x
  3. Step 3: Cross multiply
    108,086.94x = 162,376.45 × 78,193.38
  4. Step 4: Simplify right side
    108,086.94x = 12,696,763,472.88
  5. Step 5: Solve for x
    x = 12,696,763,472.88/108,086.94
  6. Step 6: Final answer
    x = 117,468.06

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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.