Home / 120,976.49-166,965.71-87,097.11

Finding the Fourth Proportional to 120,976.49, 166,965.71 and 87,097.11

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Solution

The fourth proportional to 120,976.49, 166,965.71 and 87,097.11 is: 120,207.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,976.49 : 166,965.71 = 87,097.11 : x
  2. Step 2: Convert to fraction form
    120,976.49/166,965.71 = 87,097.11/x
  3. Step 3: Cross multiply
    120,976.49x = 166,965.71 × 87,097.11
  4. Step 4: Simplify right side
    120,976.49x = 14,542,230,374.61
  5. Step 5: Solve for x
    x = 14,542,230,374.61/120,976.49
  6. Step 6: Final answer
    x = 120,207.08

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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.