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Finding the Fourth Proportional to 97,638, 134,700.60 and 63,634.06

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Solution

The fourth proportional to 97,638, 134,700.60 and 63,634.06 is: 87,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,638 : 134,700.60 = 63,634.06 : x
  2. Step 2: Convert to fraction form
    97,638/134,700.60 = 63,634.06/x
  3. Step 3: Cross multiply
    97,638x = 134,700.60 × 63,634.06
  4. Step 4: Simplify right side
    97,638x = 8,571,546,062.44
  5. Step 5: Solve for x
    x = 8,571,546,062.44/97,638
  6. Step 6: Final answer
    x = 87,789.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.