Home / 132,564.47-182,939.31-72,135.09

Finding the Fourth Proportional to 132,564.47, 182,939.31 and 72,135.09

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Solution

The fourth proportional to 132,564.47, 182,939.31 and 72,135.09 is: 99,546.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,564.47 : 182,939.31 = 72,135.09 : x
  2. Step 2: Convert to fraction form
    132,564.47/182,939.31 = 72,135.09/x
  3. Step 3: Cross multiply
    132,564.47x = 182,939.31 × 72,135.09
  4. Step 4: Simplify right side
    132,564.47x = 13,196,343,591.39
  5. Step 5: Solve for x
    x = 13,196,343,591.39/132,564.47
  6. Step 6: Final answer
    x = 99,546.61

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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.