Home / 185,616.12-256,143.18-100,730.36

Finding the Fourth Proportional to 185,616.12, 256,143.18 and 100,730.36

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Solution

The fourth proportional to 185,616.12, 256,143.18 and 100,730.36 is: 139,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,616.12 : 256,143.18 = 100,730.36 : x
  2. Step 2: Convert to fraction form
    185,616.12/256,143.18 = 100,730.36/x
  3. Step 3: Cross multiply
    185,616.12x = 256,143.18 × 100,730.36
  4. Step 4: Simplify right side
    185,616.12x = 25,801,394,732.94
  5. Step 5: Solve for x
    x = 25,801,394,732.94/185,616.12
  6. Step 6: Final answer
    x = 139,004.06

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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.