Home / 132,561.20-182,874.01-78,815.67

Finding the Fourth Proportional to 132,561.20, 182,874.01 and 78,815.67

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Solution

The fourth proportional to 132,561.20, 182,874.01 and 78,815.67 is: 108,729.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,561.20 : 182,874.01 = 78,815.67 : x
  2. Step 2: Convert to fraction form
    132,561.20/182,874.01 = 78,815.67/x
  3. Step 3: Cross multiply
    132,561.20x = 182,874.01 × 78,815.67
  4. Step 4: Simplify right side
    132,561.20x = 14,413,337,623.74
  5. Step 5: Solve for x
    x = 14,413,337,623.74/132,561.20
  6. Step 6: Final answer
    x = 108,729.69

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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.