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Finding the Fourth Proportional to 136,137.10, 203,914.05 and 88,897.90

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Solution

The fourth proportional to 136,137.10, 203,914.05 and 88,897.90 is: 133,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,137.10 : 203,914.05 = 88,897.90 : x
  2. Step 2: Convert to fraction form
    136,137.10/203,914.05 = 88,897.90/x
  3. Step 3: Cross multiply
    136,137.10x = 203,914.05 × 88,897.90
  4. Step 4: Simplify right side
    136,137.10x = 18,127,530,825.50
  5. Step 5: Solve for x
    x = 18,127,530,825.50/136,137.10
  6. Step 6: Final answer
    x = 133,156.43

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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.