Home / 112,928.92-169,358.70-78,092.44

Finding the Fourth Proportional to 112,928.92, 169,358.70 and 78,092.44

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Solution

The fourth proportional to 112,928.92, 169,358.70 and 78,092.44 is: 117,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,928.92 : 169,358.70 = 78,092.44 : x
  2. Step 2: Convert to fraction form
    112,928.92/169,358.70 = 78,092.44/x
  3. Step 3: Cross multiply
    112,928.92x = 169,358.70 × 78,092.44
  4. Step 4: Simplify right side
    112,928.92x = 13,225,634,118.23
  5. Step 5: Solve for x
    x = 13,225,634,118.23/112,928.92
  6. Step 6: Final answer
    x = 117,114.68

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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.