Home / 132,530.94-182,879.03-78,805.58

Finding the Fourth Proportional to 132,530.94, 182,879.03 and 78,805.58

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Solution

The fourth proportional to 132,530.94, 182,879.03 and 78,805.58 is: 108,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,530.94 : 182,879.03 = 78,805.58 : x
  2. Step 2: Convert to fraction form
    132,530.94/182,879.03 = 78,805.58/x
  3. Step 3: Cross multiply
    132,530.94x = 182,879.03 × 78,805.58
  4. Step 4: Simplify right side
    132,530.94x = 14,411,886,720.56
  5. Step 5: Solve for x
    x = 14,411,886,720.56/132,530.94
  6. Step 6: Final answer
    x = 108,743.56

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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.