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Finding the Fourth Proportional to 135,701.95, 203,498.22 and 40,902.79

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Solution

The fourth proportional to 135,701.95, 203,498.22 and 40,902.79 is: 61,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,701.95 : 203,498.22 = 40,902.79 : x
  2. Step 2: Convert to fraction form
    135,701.95/203,498.22 = 40,902.79/x
  3. Step 3: Cross multiply
    135,701.95x = 203,498.22 × 40,902.79
  4. Step 4: Simplify right side
    135,701.95x = 8,323,643,940.54
  5. Step 5: Solve for x
    x = 8,323,643,940.54/135,701.95
  6. Step 6: Final answer
    x = 61,337.69

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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.