Home / 118,171.08-163,078.11-67,182.66

Finding the Fourth Proportional to 118,171.08, 163,078.11 and 67,182.66

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Solution

The fourth proportional to 118,171.08, 163,078.11 and 67,182.66 is: 92,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,171.08 : 163,078.11 = 67,182.66 : x
  2. Step 2: Convert to fraction form
    118,171.08/163,078.11 = 67,182.66/x
  3. Step 3: Cross multiply
    118,171.08x = 163,078.11 × 67,182.66
  4. Step 4: Simplify right side
    118,171.08x = 10,956,021,217.57
  5. Step 5: Solve for x
    x = 10,956,021,217.57/118,171.08
  6. Step 6: Final answer
    x = 92,713.22

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1.5x scale

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.