Home / 133,221.45-183,846.09-72,793.41

Finding the Fourth Proportional to 133,221.45, 183,846.09 and 72,793.41

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Solution

The fourth proportional to 133,221.45, 183,846.09 and 72,793.41 is: 100,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,221.45 : 183,846.09 = 72,793.41 : x
  2. Step 2: Convert to fraction form
    133,221.45/183,846.09 = 72,793.41/x
  3. Step 3: Cross multiply
    133,221.45x = 183,846.09 × 72,793.41
  4. Step 4: Simplify right side
    133,221.45x = 13,382,783,806.27
  5. Step 5: Solve for x
    x = 13,382,783,806.27/133,221.45
  6. Step 6: Final answer
    x = 100,455.17

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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.