Home / 112,927.92-169,357.20-78,091.44

Finding the Fourth Proportional to 112,927.92, 169,357.20 and 78,091.44

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Solution

The fourth proportional to 112,927.92, 169,357.20 and 78,091.44 is: 117,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,927.92 : 169,357.20 = 78,091.44 : x
  2. Step 2: Convert to fraction form
    112,927.92/169,357.20 = 78,091.44/x
  3. Step 3: Cross multiply
    112,927.92x = 169,357.20 × 78,091.44
  4. Step 4: Simplify right side
    112,927.92x = 13,225,347,622.37
  5. Step 5: Solve for x
    x = 13,225,347,622.37/112,927.92
  6. Step 6: Final answer
    x = 117,113.18

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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.