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Finding the Fourth Proportional to 101,744.40, 152,511.30 and 45,611.40

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Solution

The fourth proportional to 101,744.40, 152,511.30 and 45,611.40 is: 68,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,744.40 : 152,511.30 = 45,611.40 : x
  2. Step 2: Convert to fraction form
    101,744.40/152,511.30 = 45,611.40/x
  3. Step 3: Cross multiply
    101,744.40x = 152,511.30 × 45,611.40
  4. Step 4: Simplify right side
    101,744.40x = 6,956,253,908.82
  5. Step 5: Solve for x
    x = 6,956,253,908.82/101,744.40
  6. Step 6: Final answer
    x = 68,369.89

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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.