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Finding the Fourth Proportional to 97,170.76, 134,157.54 and 79,308.37

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Solution

The fourth proportional to 97,170.76, 134,157.54 and 79,308.37 is: 109,496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,170.76 : 134,157.54 = 79,308.37 : x
  2. Step 2: Convert to fraction form
    97,170.76/134,157.54 = 79,308.37/x
  3. Step 3: Cross multiply
    97,170.76x = 134,157.54 × 79,308.37
  4. Step 4: Simplify right side
    97,170.76x = 10,639,815,820.61
  5. Step 5: Solve for x
    x = 10,639,815,820.61/97,170.76
  6. Step 6: Final answer
    x = 109,496.06

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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.