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Finding the Fourth Proportional to 135,754.46, 203,818.02 and 69,239.42

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Solution

The fourth proportional to 135,754.46, 203,818.02 and 69,239.42 is: 103,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,754.46 : 203,818.02 = 69,239.42 : x
  2. Step 2: Convert to fraction form
    135,754.46/203,818.02 = 69,239.42/x
  3. Step 3: Cross multiply
    135,754.46x = 203,818.02 × 69,239.42
  4. Step 4: Simplify right side
    135,754.46x = 14,112,241,490.35
  5. Step 5: Solve for x
    x = 14,112,241,490.35/135,754.46
  6. Step 6: Final answer
    x = 103,954.16

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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.