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Finding the Fourth Proportional to 132,751.76, 183,212.37 and 81,754.52

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Solution

The fourth proportional to 132,751.76, 183,212.37 and 81,754.52 is: 112,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,751.76 : 183,212.37 = 81,754.52 : x
  2. Step 2: Convert to fraction form
    132,751.76/183,212.37 = 81,754.52/x
  3. Step 3: Cross multiply
    132,751.76x = 183,212.37 × 81,754.52
  4. Step 4: Simplify right side
    132,751.76x = 14,978,439,367.41
  5. Step 5: Solve for x
    x = 14,978,439,367.41/132,751.76
  6. Step 6: Final answer
    x = 112,830.44

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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.