Home / 181,968.71-251,135.51-109,395.10

Finding the Fourth Proportional to 181,968.71, 251,135.51 and 109,395.10

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Solution

The fourth proportional to 181,968.71, 251,135.51 and 109,395.10 is: 150,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,968.71 : 251,135.51 = 109,395.10 : x
  2. Step 2: Convert to fraction form
    181,968.71/251,135.51 = 109,395.10/x
  3. Step 3: Cross multiply
    181,968.71x = 251,135.51 × 109,395.10
  4. Step 4: Simplify right side
    181,968.71x = 27,472,993,917.34
  5. Step 5: Solve for x
    x = 27,472,993,917.34/181,968.71
  6. Step 6: Final answer
    x = 150,976.47

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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.