Home / 170,824.38-256,392.82-86,642.66

Finding the Fourth Proportional to 170,824.38, 256,392.82 and 86,642.66

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Solution

The fourth proportional to 170,824.38, 256,392.82 and 86,642.66 is: 130,043.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,824.38 : 256,392.82 = 86,642.66 : x
  2. Step 2: Convert to fraction form
    170,824.38/256,392.82 = 86,642.66/x
  3. Step 3: Cross multiply
    170,824.38x = 256,392.82 × 86,642.66
  4. Step 4: Simplify right side
    170,824.38x = 22,214,555,929.70
  5. Step 5: Solve for x
    x = 22,214,555,929.70/170,824.38
  6. Step 6: Final answer
    x = 130,043.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.