Home / 119,902.15-165,462.98-66,185.78

Finding the Fourth Proportional to 119,902.15, 165,462.98 and 66,185.78

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Solution

The fourth proportional to 119,902.15, 165,462.98 and 66,185.78 is: 91,335.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,902.15 : 165,462.98 = 66,185.78 : x
  2. Step 2: Convert to fraction form
    119,902.15/165,462.98 = 66,185.78/x
  3. Step 3: Cross multiply
    119,902.15x = 165,462.98 × 66,185.78
  4. Step 4: Simplify right side
    119,902.15x = 10,951,296,392.42
  5. Step 5: Solve for x
    x = 10,951,296,392.42/119,902.15
  6. Step 6: Final answer
    x = 91,335.28

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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.