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Finding the Fourth Proportional to 97,604.64, 146,128.05 and 91,404.54

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Solution

The fourth proportional to 97,604.64, 146,128.05 and 91,404.54 is: 136,845.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,604.64 : 146,128.05 = 91,404.54 : x
  2. Step 2: Convert to fraction form
    97,604.64/146,128.05 = 91,404.54/x
  3. Step 3: Cross multiply
    97,604.64x = 146,128.05 × 91,404.54
  4. Step 4: Simplify right side
    97,604.64x = 13,356,767,191.35
  5. Step 5: Solve for x
    x = 13,356,767,191.35/97,604.64
  6. Step 6: Final answer
    x = 136,845.62

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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.