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Finding the Fourth Proportional to 118,181.80, 177,234.30 and 39,282.60

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Solution

The fourth proportional to 118,181.80, 177,234.30 and 39,282.60 is: 58,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181.80 : 177,234.30 = 39,282.60 : x
  2. Step 2: Convert to fraction form
    118,181.80/177,234.30 = 39,282.60/x
  3. Step 3: Cross multiply
    118,181.80x = 177,234.30 × 39,282.60
  4. Step 4: Simplify right side
    118,181.80x = 6,962,224,113.18
  5. Step 5: Solve for x
    x = 6,962,224,113.18/118,181.80
  6. Step 6: Final answer
    x = 58,911.14

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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.