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Finding the Fourth Proportional to 119,996.78, 165,594.51 and 66,285.54

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Solution

The fourth proportional to 119,996.78, 165,594.51 and 66,285.54 is: 91,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,996.78 : 165,594.51 = 66,285.54 : x
  2. Step 2: Convert to fraction form
    119,996.78/165,594.51 = 66,285.54/x
  3. Step 3: Cross multiply
    119,996.78x = 165,594.51 × 66,285.54
  4. Step 4: Simplify right side
    119,996.78x = 10,976,521,516.39
  5. Step 5: Solve for x
    x = 10,976,521,516.39/119,996.78
  6. Step 6: Final answer
    x = 91,473.47

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1.5x scale

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.