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Finding the Fourth Proportional to 131,871.44, 181,994.28 and 75,301.04

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Solution

The fourth proportional to 131,871.44, 181,994.28 and 75,301.04 is: 103,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,871.44 : 181,994.28 = 75,301.04 : x
  2. Step 2: Convert to fraction form
    131,871.44/181,994.28 = 75,301.04/x
  3. Step 3: Cross multiply
    131,871.44x = 181,994.28 × 75,301.04
  4. Step 4: Simplify right side
    131,871.44x = 13,704,358,558.05
  5. Step 5: Solve for x
    x = 13,704,358,558.05/131,871.44
  6. Step 6: Final answer
    x = 103,922.11

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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.