Home / 98,194.71-135,619.07-66,308.25

Finding the Fourth Proportional to 98,194.71, 135,619.07 and 66,308.25

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Solution

The fourth proportional to 98,194.71, 135,619.07 and 66,308.25 is: 91,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,194.71 : 135,619.07 = 66,308.25 : x
  2. Step 2: Convert to fraction form
    98,194.71/135,619.07 = 66,308.25/x
  3. Step 3: Cross multiply
    98,194.71x = 135,619.07 × 66,308.25
  4. Step 4: Simplify right side
    98,194.71x = 8,992,662,866.79
  5. Step 5: Solve for x
    x = 8,992,662,866.79/98,194.71
  6. Step 6: Final answer
    x = 91,579.91

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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.