Home / 185,549.87-256,057.75-100,665.11

Finding the Fourth Proportional to 185,549.87, 256,057.75 and 100,665.11

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Solution

The fourth proportional to 185,549.87, 256,057.75 and 100,665.11 is: 138,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,549.87 : 256,057.75 = 100,665.11 : x
  2. Step 2: Convert to fraction form
    185,549.87/256,057.75 = 100,665.11/x
  3. Step 3: Cross multiply
    185,549.87x = 256,057.75 × 100,665.11
  4. Step 4: Simplify right side
    185,549.87x = 25,776,081,570.10
  5. Step 5: Solve for x
    x = 25,776,081,570.10/185,549.87
  6. Step 6: Final answer
    x = 138,917.27

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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.