Home / 132,538.52-182,901.15-72,107.79

Finding the Fourth Proportional to 132,538.52, 182,901.15 and 72,107.79

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Solution

The fourth proportional to 132,538.52, 182,901.15 and 72,107.79 is: 99,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,538.52 : 182,901.15 = 72,107.79 : x
  2. Step 2: Convert to fraction form
    132,538.52/182,901.15 = 72,107.79/x
  3. Step 3: Cross multiply
    132,538.52x = 182,901.15 × 72,107.79
  4. Step 4: Simplify right side
    132,538.52x = 13,188,597,029.08
  5. Step 5: Solve for x
    x = 13,188,597,029.08/132,538.52
  6. Step 6: Final answer
    x = 99,507.65

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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.