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Finding the Fourth Proportional to 97,999.90, 146,781.15 and 75,741.10

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Solution

The fourth proportional to 97,999.90, 146,781.15 and 75,741.10 is: 113,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,999.90 : 146,781.15 = 75,741.10 : x
  2. Step 2: Convert to fraction form
    97,999.90/146,781.15 = 75,741.10/x
  3. Step 3: Cross multiply
    97,999.90x = 146,781.15 × 75,741.10
  4. Step 4: Simplify right side
    97,999.90x = 11,117,365,760.27
  5. Step 5: Solve for x
    x = 11,117,365,760.27/97,999.90
  6. Step 6: Final answer
    x = 113,442.62

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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.