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Finding the Fourth Proportional to 135,800.28, 203,435.55 and 88,911

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Solution

The fourth proportional to 135,800.28, 203,435.55 and 88,911 is: 133,193.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,800.28 : 203,435.55 = 88,911 : x
  2. Step 2: Convert to fraction form
    135,800.28/203,435.55 = 88,911/x
  3. Step 3: Cross multiply
    135,800.28x = 203,435.55 × 88,911
  4. Step 4: Simplify right side
    135,800.28x = 18,087,658,186.05
  5. Step 5: Solve for x
    x = 18,087,658,186.05/135,800.28
  6. Step 6: Final answer
    x = 133,193.08

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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.