Home / 112,893.20-169,367.92-79,678.08

Finding the Fourth Proportional to 112,893.20, 169,367.92 and 79,678.08

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Solution

The fourth proportional to 112,893.20, 169,367.92 and 79,678.08 is: 119,536.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,893.20 : 169,367.92 = 79,678.08 : x
  2. Step 2: Convert to fraction form
    112,893.20/169,367.92 = 79,678.08/x
  3. Step 3: Cross multiply
    112,893.20x = 169,367.92 × 79,678.08
  4. Step 4: Simplify right side
    112,893.20x = 13,494,910,679.19
  5. Step 5: Solve for x
    x = 13,494,910,679.19/112,893.20
  6. Step 6: Final answer
    x = 119,536.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.