Home / 132,450.86-182,707.38-78,753.20

Finding the Fourth Proportional to 132,450.86, 182,707.38 and 78,753.20

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Solution

The fourth proportional to 132,450.86, 182,707.38 and 78,753.20 is: 108,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,450.86 : 182,707.38 = 78,753.20 : x
  2. Step 2: Convert to fraction form
    132,450.86/182,707.38 = 78,753.20/x
  3. Step 3: Cross multiply
    132,450.86x = 182,707.38 × 78,753.20
  4. Step 4: Simplify right side
    132,450.86x = 14,388,789,531.31
  5. Step 5: Solve for x
    x = 14,388,789,531.31/132,450.86
  6. Step 6: Final answer
    x = 108,634.93

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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.