Home / 123,639.18-185,473.64-43,660.69

Finding the Fourth Proportional to 123,639.18, 185,473.64 and 43,660.69

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Solution

The fourth proportional to 123,639.18, 185,473.64 and 43,660.69 is: 65,496.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,639.18 : 185,473.64 = 43,660.69 : x
  2. Step 2: Convert to fraction form
    123,639.18/185,473.64 = 43,660.69/x
  3. Step 3: Cross multiply
    123,639.18x = 185,473.64 × 43,660.69
  4. Step 4: Simplify right side
    123,639.18x = 8,097,907,099.21
  5. Step 5: Solve for x
    x = 8,097,907,099.21/123,639.18
  6. Step 6: Final answer
    x = 65,496.29

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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.