Home / 120,354.62-166,091.82-72,006.44

Finding the Fourth Proportional to 120,354.62, 166,091.82 and 72,006.44

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Solution

The fourth proportional to 120,354.62, 166,091.82 and 72,006.44 is: 99,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,354.62 : 166,091.82 = 72,006.44 : x
  2. Step 2: Convert to fraction form
    120,354.62/166,091.82 = 72,006.44/x
  3. Step 3: Cross multiply
    120,354.62x = 166,091.82 × 72,006.44
  4. Step 4: Simplify right side
    120,354.62x = 11,959,680,671.32
  5. Step 5: Solve for x
    x = 11,959,680,671.32/120,354.62
  6. Step 6: Final answer
    x = 99,370.35

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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.