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Finding the Fourth Proportional to 97,663.40, 146,276.40 and 75,404.60

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Solution

The fourth proportional to 97,663.40, 146,276.40 and 75,404.60 is: 112,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,663.40 : 146,276.40 = 75,404.60 : x
  2. Step 2: Convert to fraction form
    97,663.40/146,276.40 = 75,404.60/x
  3. Step 3: Cross multiply
    97,663.40x = 146,276.40 × 75,404.60
  4. Step 4: Simplify right side
    97,663.40x = 11,029,913,431.44
  5. Step 5: Solve for x
    x = 11,029,913,431.44/97,663.40
  6. Step 6: Final answer
    x = 112,938.04

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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.