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Finding the Fourth Proportional to 162,192, 243,419.04 and 68,763.36

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Solution

The fourth proportional to 162,192, 243,419.04 and 68,763.36 is: 103,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,192 : 243,419.04 = 68,763.36 : x
  2. Step 2: Convert to fraction form
    162,192/243,419.04 = 68,763.36/x
  3. Step 3: Cross multiply
    162,192x = 243,419.04 × 68,763.36
  4. Step 4: Simplify right side
    162,192x = 16,738,311,078.37
  5. Step 5: Solve for x
    x = 16,738,311,078.37/162,192
  6. Step 6: Final answer
    x = 103,200.60

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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.