Home / 185,665.37-256,217.99-100,782.43

Finding the Fourth Proportional to 185,665.37, 256,217.99 and 100,782.43

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Solution

The fourth proportional to 185,665.37, 256,217.99 and 100,782.43 is: 139,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,665.37 : 256,217.99 = 100,782.43 : x
  2. Step 2: Convert to fraction form
    185,665.37/256,217.99 = 100,782.43/x
  3. Step 3: Cross multiply
    185,665.37x = 256,217.99 × 100,782.43
  4. Step 4: Simplify right side
    185,665.37x = 25,822,270,497.46
  5. Step 5: Solve for x
    x = 25,822,270,497.46/185,665.37
  6. Step 6: Final answer
    x = 139,079.63

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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.