Home / 185,538.38-255,884.87-142,621.74

Finding the Fourth Proportional to 185,538.38, 255,884.87 and 142,621.74

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Solution

The fourth proportional to 185,538.38, 255,884.87 and 142,621.74 is: 196,696.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,538.38 : 255,884.87 = 142,621.74 : x
  2. Step 2: Convert to fraction form
    185,538.38/255,884.87 = 142,621.74/x
  3. Step 3: Cross multiply
    185,538.38x = 255,884.87 × 142,621.74
  4. Step 4: Simplify right side
    185,538.38x = 36,494,744,685.97
  5. Step 5: Solve for x
    x = 36,494,744,685.97/185,538.38
  6. Step 6: Final answer
    x = 196,696.48

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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.