Home / 132,910.80-183,416.79-72,481.56

Finding the Fourth Proportional to 132,910.80, 183,416.79 and 72,481.56

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Solution

The fourth proportional to 132,910.80, 183,416.79 and 72,481.56 is: 100,024.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,910.80 : 183,416.79 = 72,481.56 : x
  2. Step 2: Convert to fraction form
    132,910.80/183,416.79 = 72,481.56/x
  3. Step 3: Cross multiply
    132,910.80x = 183,416.79 × 72,481.56
  4. Step 4: Simplify right side
    132,910.80x = 13,294,335,069.39
  5. Step 5: Solve for x
    x = 13,294,335,069.39/132,910.80
  6. Step 6: Final answer
    x = 100,024.49

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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.