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Finding the Fourth Proportional to 139,492.80, 209,037.26 and 96,171.27

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Solution

The fourth proportional to 139,492.80, 209,037.26 and 96,171.27 is: 144,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,492.80 : 209,037.26 = 96,171.27 : x
  2. Step 2: Convert to fraction form
    139,492.80/209,037.26 = 96,171.27/x
  3. Step 3: Cross multiply
    139,492.80x = 209,037.26 × 96,171.27
  4. Step 4: Simplify right side
    139,492.80x = 20,103,378,771.52
  5. Step 5: Solve for x
    x = 20,103,378,771.52/139,492.80
  6. Step 6: Final answer
    x = 144,117.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.