Home / 118,209.66-163,128.51-67,222.37

Finding the Fourth Proportional to 118,209.66, 163,128.51 and 67,222.37

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Solution

The fourth proportional to 118,209.66, 163,128.51 and 67,222.37 is: 92,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,209.66 : 163,128.51 = 67,222.37 : x
  2. Step 2: Convert to fraction form
    118,209.66/163,128.51 = 67,222.37/x
  3. Step 3: Cross multiply
    118,209.66x = 163,128.51 × 67,222.37
  4. Step 4: Simplify right side
    118,209.66x = 10,965,884,241.13
  5. Step 5: Solve for x
    x = 10,965,884,241.13/118,209.66
  6. Step 6: Final answer
    x = 92,766.40

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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.