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Finding the Fourth Proportional to 162,722.36, 244,120.36 and 87,840.90

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Solution

The fourth proportional to 162,722.36, 244,120.36 and 87,840.90 is: 131,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,722.36 : 244,120.36 = 87,840.90 : x
  2. Step 2: Convert to fraction form
    162,722.36/244,120.36 = 87,840.90/x
  3. Step 3: Cross multiply
    162,722.36x = 244,120.36 × 87,840.90
  4. Step 4: Simplify right side
    162,722.36x = 21,443,752,130.72
  5. Step 5: Solve for x
    x = 21,443,752,130.72/162,722.36
  6. Step 6: Final answer
    x = 131,781.23

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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.