Home / 119,979.43-165,571.09-66,264.18

Finding the Fourth Proportional to 119,979.43, 165,571.09 and 66,264.18

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Solution

The fourth proportional to 119,979.43, 165,571.09 and 66,264.18 is: 91,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,979.43 : 165,571.09 = 66,264.18 : x
  2. Step 2: Convert to fraction form
    119,979.43/165,571.09 = 66,264.18/x
  3. Step 3: Cross multiply
    119,979.43x = 165,571.09 × 66,264.18
  4. Step 4: Simplify right side
    119,979.43x = 10,971,431,724.00
  5. Step 5: Solve for x
    x = 10,971,431,724.00/119,979.43
  6. Step 6: Final answer
    x = 91,444.27

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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.