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Finding the Fourth Proportional to 72,834.60, 102,175.80 and 72,834.60

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Solution

The fourth proportional to 72,834.60, 102,175.80 and 72,834.60 is: 102,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,834.60 : 102,175.80 = 72,834.60 : x
  2. Step 2: Convert to fraction form
    72,834.60/102,175.80 = 72,834.60/x
  3. Step 3: Cross multiply
    72,834.60x = 102,175.80 × 72,834.60
  4. Step 4: Simplify right side
    72,834.60x = 7,441,933,522.68
  5. Step 5: Solve for x
    x = 7,441,933,522.68/72,834.60
  6. Step 6: Final answer
    x = 102,175.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.