Home / 198,181.90-297,272.04-71,792.56

Finding the Fourth Proportional to 198,181.90, 297,272.04 and 71,792.56

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Solution

The fourth proportional to 198,181.90, 297,272.04 and 71,792.56 is: 107,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,181.90 : 297,272.04 = 71,792.56 : x
  2. Step 2: Convert to fraction form
    198,181.90/297,272.04 = 71,792.56/x
  3. Step 3: Cross multiply
    198,181.90x = 297,272.04 × 71,792.56
  4. Step 4: Simplify right side
    198,181.90x = 21,341,920,768.02
  5. Step 5: Solve for x
    x = 21,341,920,768.02/198,181.90
  6. Step 6: Final answer
    x = 107,688.55

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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.