Home / 117,550.60-162,221.71-66,561.95

Finding the Fourth Proportional to 117,550.60, 162,221.71 and 66,561.95

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Solution

The fourth proportional to 117,550.60, 162,221.71 and 66,561.95 is: 91,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,550.60 : 162,221.71 = 66,561.95 : x
  2. Step 2: Convert to fraction form
    117,550.60/162,221.71 = 66,561.95/x
  3. Step 3: Cross multiply
    117,550.60x = 162,221.71 × 66,561.95
  4. Step 4: Simplify right side
    117,550.60x = 10,797,793,901.09
  5. Step 5: Solve for x
    x = 10,797,793,901.09/117,550.60
  6. Step 6: Final answer
    x = 91,856.56

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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.