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Finding the Fourth Proportional to 101,519.52, 152,310.42 and 45,406.86

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Solution

The fourth proportional to 101,519.52, 152,310.42 and 45,406.86 is: 68,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,519.52 : 152,310.42 = 45,406.86 : x
  2. Step 2: Convert to fraction form
    101,519.52/152,310.42 = 45,406.86/x
  3. Step 3: Cross multiply
    101,519.52x = 152,310.42 × 45,406.86
  4. Step 4: Simplify right side
    101,519.52x = 6,915,937,917.48
  5. Step 5: Solve for x
    x = 6,915,937,917.48/101,519.52
  6. Step 6: Final answer
    x = 68,124.22

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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.