Home / 118,193.18-163,099.71-67,198.55

Finding the Fourth Proportional to 118,193.18, 163,099.71 and 67,198.55

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Solution

The fourth proportional to 118,193.18, 163,099.71 and 67,198.55 is: 92,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,193.18 : 163,099.71 = 67,198.55 : x
  2. Step 2: Convert to fraction form
    118,193.18/163,099.71 = 67,198.55/x
  3. Step 3: Cross multiply
    118,193.18x = 163,099.71 × 67,198.55
  4. Step 4: Simplify right side
    118,193.18x = 10,960,063,201.92
  5. Step 5: Solve for x
    x = 10,960,063,201.92/118,193.18
  6. Step 6: Final answer
    x = 92,730.09

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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.