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Finding the Fourth Proportional to 162,799.80, 244,069.29 and 77,367.78

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Solution

The fourth proportional to 162,799.80, 244,069.29 and 77,367.78 is: 115,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,799.80 : 244,069.29 = 77,367.78 : x
  2. Step 2: Convert to fraction form
    162,799.80/244,069.29 = 77,367.78/x
  3. Step 3: Cross multiply
    162,799.80x = 244,069.29 × 77,367.78
  4. Step 4: Simplify right side
    162,799.80x = 18,883,099,133.48
  5. Step 5: Solve for x
    x = 18,883,099,133.48/162,799.80
  6. Step 6: Final answer
    x = 115,989.69

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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.