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Finding the Fourth Proportional to 136,370.70, 204,641.22 and 52,137.96

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Solution

The fourth proportional to 136,370.70, 204,641.22 and 52,137.96 is: 78,239.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,370.70 : 204,641.22 = 52,137.96 : x
  2. Step 2: Convert to fraction form
    136,370.70/204,641.22 = 52,137.96/x
  3. Step 3: Cross multiply
    136,370.70x = 204,641.22 × 52,137.96
  4. Step 4: Simplify right side
    136,370.70x = 10,669,575,742.71
  5. Step 5: Solve for x
    x = 10,669,575,742.71/136,370.70
  6. Step 6: Final answer
    x = 78,239.50

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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.