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Finding the Fourth Proportional to 97,169.76, 134,156.16 and 79,307.37

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Solution

The fourth proportional to 97,169.76, 134,156.16 and 79,307.37 is: 109,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,169.76 : 134,156.16 = 79,307.37 : x
  2. Step 2: Convert to fraction form
    97,169.76/134,156.16 = 79,307.37/x
  3. Step 3: Cross multiply
    97,169.76x = 134,156.16 × 79,307.37
  4. Step 4: Simplify right side
    97,169.76x = 10,639,572,218.90
  5. Step 5: Solve for x
    x = 10,639,572,218.90/97,169.76
  6. Step 6: Final answer
    x = 109,494.68

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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.