Home / 118,478.38-163,504.56-64,767.04

Finding the Fourth Proportional to 118,478.38, 163,504.56 and 64,767.04

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Solution

The fourth proportional to 118,478.38, 163,504.56 and 64,767.04 is: 89,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,478.38 : 163,504.56 = 64,767.04 : x
  2. Step 2: Convert to fraction form
    118,478.38/163,504.56 = 64,767.04/x
  3. Step 3: Cross multiply
    118,478.38x = 163,504.56 × 64,767.04
  4. Step 4: Simplify right side
    118,478.38x = 10,589,706,377.70
  5. Step 5: Solve for x
    x = 10,589,706,377.70/118,478.38
  6. Step 6: Final answer
    x = 89,380.92

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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.