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Finding the Fourth Proportional to 97,073.60, 133,929.24 and 79,137.68

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Solution

The fourth proportional to 97,073.60, 133,929.24 and 79,137.68 is: 109,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,073.60 : 133,929.24 = 79,137.68 : x
  2. Step 2: Convert to fraction form
    97,073.60/133,929.24 = 79,137.68/x
  3. Step 3: Cross multiply
    97,073.60x = 133,929.24 × 79,137.68
  4. Step 4: Simplify right side
    97,073.60x = 10,598,849,337.76
  5. Step 5: Solve for x
    x = 10,598,849,337.76/97,073.60
  6. Step 6: Final answer
    x = 109,183.64

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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.