Home / 185,664.65-256,215.56-100,781.64

Finding the Fourth Proportional to 185,664.65, 256,215.56 and 100,781.64

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Solution

The fourth proportional to 185,664.65, 256,215.56 and 100,781.64 is: 139,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,664.65 : 256,215.56 = 100,781.64 : x
  2. Step 2: Convert to fraction form
    185,664.65/256,215.56 = 100,781.64/x
  3. Step 3: Cross multiply
    185,664.65x = 256,215.56 × 100,781.64
  4. Step 4: Simplify right side
    185,664.65x = 25,821,823,826.41
  5. Step 5: Solve for x
    x = 25,821,823,826.41/185,664.65
  6. Step 6: Final answer
    x = 139,077.76

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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.