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Finding the Fourth Proportional to 181,216.44, 250,078.46 and 100,656

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Solution

The fourth proportional to 181,216.44, 250,078.46 and 100,656 is: 138,905.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,216.44 : 250,078.46 = 100,656 : x
  2. Step 2: Convert to fraction form
    181,216.44/250,078.46 = 100,656/x
  3. Step 3: Cross multiply
    181,216.44x = 250,078.46 × 100,656
  4. Step 4: Simplify right side
    181,216.44x = 25,171,896,966.48
  5. Step 5: Solve for x
    x = 25,171,896,966.48/181,216.44
  6. Step 6: Final answer
    x = 138,905.15

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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.