Home / 118,795.12-163,930.38-65,070.79

Finding the Fourth Proportional to 118,795.12, 163,930.38 and 65,070.79

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Solution

The fourth proportional to 118,795.12, 163,930.38 and 65,070.79 is: 89,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,795.12 : 163,930.38 = 65,070.79 : x
  2. Step 2: Convert to fraction form
    118,795.12/163,930.38 = 65,070.79/x
  3. Step 3: Cross multiply
    118,795.12x = 163,930.38 × 65,070.79
  4. Step 4: Simplify right side
    118,795.12x = 10,667,079,331.60
  5. Step 5: Solve for x
    x = 10,667,079,331.60/118,795.12
  6. Step 6: Final answer
    x = 89,793.92

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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.