Home / 118,640.18-163,722.22-67,661.22

Finding the Fourth Proportional to 118,640.18, 163,722.22 and 67,661.22

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Solution

The fourth proportional to 118,640.18, 163,722.22 and 67,661.22 is: 93,371.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,640.18 : 163,722.22 = 67,661.22 : x
  2. Step 2: Convert to fraction form
    118,640.18/163,722.22 = 67,661.22/x
  3. Step 3: Cross multiply
    118,640.18x = 163,722.22 × 67,661.22
  4. Step 4: Simplify right side
    118,640.18x = 11,077,645,146.31
  5. Step 5: Solve for x
    x = 11,077,645,146.31/118,640.18
  6. Step 6: Final answer
    x = 93,371.78

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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.