Home / 73,016.08-109,708.64-70,063.68

Finding the Fourth Proportional to 73,016.08, 109,708.64 and 70,063.68

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Solution

The fourth proportional to 73,016.08, 109,708.64 and 70,063.68 is: 105,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,016.08 : 109,708.64 = 70,063.68 : x
  2. Step 2: Convert to fraction form
    73,016.08/109,708.64 = 70,063.68/x
  3. Step 3: Cross multiply
    73,016.08x = 109,708.64 × 70,063.68
  4. Step 4: Simplify right side
    73,016.08x = 7,686,591,046.20
  5. Step 5: Solve for x
    x = 7,686,591,046.20/73,016.08
  6. Step 6: Final answer
    x = 105,272.58

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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.