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Finding the Fourth Proportional to 119,652.91, 165,118.90 and 65,205.57

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Solution

The fourth proportional to 119,652.91, 165,118.90 and 65,205.57 is: 89,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,652.91 : 165,118.90 = 65,205.57 : x
  2. Step 2: Convert to fraction form
    119,652.91/165,118.90 = 65,205.57/x
  3. Step 3: Cross multiply
    119,652.91x = 165,118.90 × 65,205.57
  4. Step 4: Simplify right side
    119,652.91x = 10,766,671,992.27
  5. Step 5: Solve for x
    x = 10,766,671,992.27/119,652.91
  6. Step 6: Final answer
    x = 89,982.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.