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Finding the Fourth Proportional to 139,224.66, 208,833.21 and 96,488.34

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Solution

The fourth proportional to 139,224.66, 208,833.21 and 96,488.34 is: 144,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,224.66 : 208,833.21 = 96,488.34 : x
  2. Step 2: Convert to fraction form
    139,224.66/208,833.21 = 96,488.34/x
  3. Step 3: Cross multiply
    139,224.66x = 208,833.21 × 96,488.34
  4. Step 4: Simplify right side
    139,224.66x = 20,149,969,769.77
  5. Step 5: Solve for x
    x = 20,149,969,769.77/139,224.66
  6. Step 6: Final answer
    x = 144,729.89

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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.