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Finding the Fourth Proportional to 159,954.84, 240,079.89 and 81,124.44

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Solution

The fourth proportional to 159,954.84, 240,079.89 and 81,124.44 is: 121,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,954.84 : 240,079.89 = 81,124.44 : x
  2. Step 2: Convert to fraction form
    159,954.84/240,079.89 = 81,124.44/x
  3. Step 3: Cross multiply
    159,954.84x = 240,079.89 × 81,124.44
  4. Step 4: Simplify right side
    159,954.84x = 19,476,346,631.51
  5. Step 5: Solve for x
    x = 19,476,346,631.51/159,954.84
  6. Step 6: Final answer
    x = 121,761.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.