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Finding the Fourth Proportional to 119,659.26, 165,127.75 and 65,943.13

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Solution

The fourth proportional to 119,659.26, 165,127.75 and 65,943.13 is: 91,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,659.26 : 165,127.75 = 65,943.13 : x
  2. Step 2: Convert to fraction form
    119,659.26/165,127.75 = 65,943.13/x
  3. Step 3: Cross multiply
    119,659.26x = 165,127.75 × 65,943.13
  4. Step 4: Simplify right side
    119,659.26x = 10,889,040,684.86
  5. Step 5: Solve for x
    x = 10,889,040,684.86/119,659.26
  6. Step 6: Final answer
    x = 91,000.40

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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.