Home / 165,092.10-247,638.15-76,518.60

Finding the Fourth Proportional to 165,092.10, 247,638.15 and 76,518.60

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Solution

The fourth proportional to 165,092.10, 247,638.15 and 76,518.60 is: 114,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,092.10 : 247,638.15 = 76,518.60 : x
  2. Step 2: Convert to fraction form
    165,092.10/247,638.15 = 76,518.60/x
  3. Step 3: Cross multiply
    165,092.10x = 247,638.15 × 76,518.60
  4. Step 4: Simplify right side
    165,092.10x = 18,948,924,544.59
  5. Step 5: Solve for x
    x = 18,948,924,544.59/165,092.10
  6. Step 6: Final answer
    x = 114,777.90

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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.