Home / 132,539.72-182,835.12-78,786.52

Finding the Fourth Proportional to 132,539.72, 182,835.12 and 78,786.52

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Solution

The fourth proportional to 132,539.72, 182,835.12 and 78,786.52 is: 108,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,539.72 : 182,835.12 = 78,786.52 : x
  2. Step 2: Convert to fraction form
    132,539.72/182,835.12 = 78,786.52/x
  3. Step 3: Cross multiply
    132,539.72x = 182,835.12 × 78,786.52
  4. Step 4: Simplify right side
    132,539.72x = 14,404,942,838.58
  5. Step 5: Solve for x
    x = 14,404,942,838.58/132,539.72
  6. Step 6: Final answer
    x = 108,683.97

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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.