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Finding the Fourth Proportional to 181,871.28, 250,990.16 and 101,298.83

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Solution

The fourth proportional to 181,871.28, 250,990.16 and 101,298.83 is: 139,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,871.28 : 250,990.16 = 101,298.83 : x
  2. Step 2: Convert to fraction form
    181,871.28/250,990.16 = 101,298.83/x
  3. Step 3: Cross multiply
    181,871.28x = 250,990.16 × 101,298.83
  4. Step 4: Simplify right side
    181,871.28x = 25,425,007,788.07
  5. Step 5: Solve for x
    x = 25,425,007,788.07/181,871.28
  6. Step 6: Final answer
    x = 139,796.72

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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.