Home / 112,659.96-168,929.32-45,158.12

Finding the Fourth Proportional to 112,659.96, 168,929.32 and 45,158.12

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Solution

The fourth proportional to 112,659.96, 168,929.32 and 45,158.12 is: 67,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,659.96 : 168,929.32 = 45,158.12 : x
  2. Step 2: Convert to fraction form
    112,659.96/168,929.32 = 45,158.12/x
  3. Step 3: Cross multiply
    112,659.96x = 168,929.32 × 45,158.12
  4. Step 4: Simplify right side
    112,659.96x = 7,628,530,504.08
  5. Step 5: Solve for x
    x = 7,628,530,504.08/112,659.96
  6. Step 6: Final answer
    x = 67,712.88

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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.