Home / 112,651.92-168,170.76-104,778.72

Finding the Fourth Proportional to 112,651.92, 168,170.76 and 104,778.72

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Solution

The fourth proportional to 112,651.92, 168,170.76 and 104,778.72 is: 156,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,651.92 : 168,170.76 = 104,778.72 : x
  2. Step 2: Convert to fraction form
    112,651.92/168,170.76 = 104,778.72/x
  3. Step 3: Cross multiply
    112,651.92x = 168,170.76 × 104,778.72
  4. Step 4: Simplify right side
    112,651.92x = 17,620,716,974.23
  5. Step 5: Solve for x
    x = 17,620,716,974.23/112,651.92
  6. Step 6: Final answer
    x = 156,417.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.