Home / 185,519.25-256,016.70-100,636.65

Finding the Fourth Proportional to 185,519.25, 256,016.70 and 100,636.65

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Solution

The fourth proportional to 185,519.25, 256,016.70 and 100,636.65 is: 138,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,519.25 : 256,016.70 = 100,636.65 : x
  2. Step 2: Convert to fraction form
    185,519.25/256,016.70 = 100,636.65/x
  3. Step 3: Cross multiply
    185,519.25x = 256,016.70 × 100,636.65
  4. Step 4: Simplify right side
    185,519.25x = 25,764,663,032.06
  5. Step 5: Solve for x
    x = 25,764,663,032.06/185,519.25
  6. Step 6: Final answer
    x = 138,878.65

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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.