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Finding the Fourth Proportional to 72,148.76, 108,223.97 and 22,228.46

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Solution

The fourth proportional to 72,148.76, 108,223.97 and 22,228.46 is: 33,342.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,148.76 : 108,223.97 = 22,228.46 : x
  2. Step 2: Convert to fraction form
    72,148.76/108,223.97 = 22,228.46/x
  3. Step 3: Cross multiply
    72,148.76x = 108,223.97 × 22,228.46
  4. Step 4: Simplify right side
    72,148.76x = 2,405,651,535.92
  5. Step 5: Solve for x
    x = 2,405,651,535.92/72,148.76
  6. Step 6: Final answer
    x = 33,342.94

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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.