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Finding the Fourth Proportional to 119,711.88, 165,203.44 and 65,998.80

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Solution

The fourth proportional to 119,711.88, 165,203.44 and 65,998.80 is: 91,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,711.88 : 165,203.44 = 65,998.80 : x
  2. Step 2: Convert to fraction form
    119,711.88/165,203.44 = 65,998.80/x
  3. Step 3: Cross multiply
    119,711.88x = 165,203.44 × 65,998.80
  4. Step 4: Simplify right side
    119,711.88x = 10,903,228,630.88
  5. Step 5: Solve for x
    x = 10,903,228,630.88/119,711.88
  6. Step 6: Final answer
    x = 91,078.92

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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.