Home / 120,976.98-166,966.40-87,097.62

Finding the Fourth Proportional to 120,976.98, 166,966.40 and 87,097.62

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Solution

The fourth proportional to 120,976.98, 166,966.40 and 87,097.62 is: 120,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,976.98 : 166,966.40 = 87,097.62 : x
  2. Step 2: Convert to fraction form
    120,976.98/166,966.40 = 87,097.62/x
  3. Step 3: Cross multiply
    120,976.98x = 166,966.40 × 87,097.62
  4. Step 4: Simplify right side
    120,976.98x = 14,542,376,059.97
  5. Step 5: Solve for x
    x = 14,542,376,059.97/120,976.98
  6. Step 6: Final answer
    x = 120,207.80

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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.