Home / 112,785.08-168,993.03-68,276.93

Finding the Fourth Proportional to 112,785.08, 168,993.03 and 68,276.93

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Solution

The fourth proportional to 112,785.08, 168,993.03 and 68,276.93 is: 102,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,785.08 : 168,993.03 = 68,276.93 : x
  2. Step 2: Convert to fraction form
    112,785.08/168,993.03 = 68,276.93/x
  3. Step 3: Cross multiply
    112,785.08x = 168,993.03 × 68,276.93
  4. Step 4: Simplify right side
    112,785.08x = 11,538,324,690.87
  5. Step 5: Solve for x
    x = 11,538,324,690.87/112,785.08
  6. Step 6: Final answer
    x = 102,303.65

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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.