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Finding the Fourth Proportional to 139,225.66, 208,834.71 and 96,489.34

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Solution

The fourth proportional to 139,225.66, 208,834.71 and 96,489.34 is: 144,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,225.66 : 208,834.71 = 96,489.34 : x
  2. Step 2: Convert to fraction form
    139,225.66/208,834.71 = 96,489.34/x
  3. Step 3: Cross multiply
    139,225.66x = 208,834.71 × 96,489.34
  4. Step 4: Simplify right side
    139,225.66x = 20,150,323,336.99
  5. Step 5: Solve for x
    x = 20,150,323,336.99/139,225.66
  6. Step 6: Final answer
    x = 144,731.39

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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.