Home / 112,568.15-168,768.38-68,184.20

Finding the Fourth Proportional to 112,568.15, 168,768.38 and 68,184.20

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Solution

The fourth proportional to 112,568.15, 168,768.38 and 68,184.20 is: 102,225.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,568.15 : 168,768.38 = 68,184.20 : x
  2. Step 2: Convert to fraction form
    112,568.15/168,768.38 = 68,184.20/x
  3. Step 3: Cross multiply
    112,568.15x = 168,768.38 × 68,184.20
  4. Step 4: Simplify right side
    112,568.15x = 11,507,335,790.83
  5. Step 5: Solve for x
    x = 11,507,335,790.83/112,568.15
  6. Step 6: Final answer
    x = 102,225.51

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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.