Home / 133,100.46-183,679.38-72,672.66

Finding the Fourth Proportional to 133,100.46, 183,679.38 and 72,672.66

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Solution

The fourth proportional to 133,100.46, 183,679.38 and 72,672.66 is: 100,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,100.46 : 183,679.38 = 72,672.66 : x
  2. Step 2: Convert to fraction form
    133,100.46/183,679.38 = 72,672.66/x
  3. Step 3: Cross multiply
    133,100.46x = 183,679.38 × 72,672.66
  4. Step 4: Simplify right side
    133,100.46x = 13,348,469,131.75
  5. Step 5: Solve for x
    x = 13,348,469,131.75/133,100.46
  6. Step 6: Final answer
    x = 100,288.68

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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.