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Finding the Fourth Proportional to 134,684.99, 185,901.10 and 79,542.62

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Solution

The fourth proportional to 134,684.99, 185,901.10 and 79,542.62 is: 109,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,684.99 : 185,901.10 = 79,542.62 : x
  2. Step 2: Convert to fraction form
    134,684.99/185,901.10 = 79,542.62/x
  3. Step 3: Cross multiply
    134,684.99x = 185,901.10 × 79,542.62
  4. Step 4: Simplify right side
    134,684.99x = 14,787,060,554.88
  5. Step 5: Solve for x
    x = 14,787,060,554.88/134,684.99
  6. Step 6: Final answer
    x = 109,789.97

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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.