Home / 189,626.52-261,678.65-103,584.12

Finding the Fourth Proportional to 189,626.52, 261,678.65 and 103,584.12

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Solution

The fourth proportional to 189,626.52, 261,678.65 and 103,584.12 is: 142,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,626.52 : 261,678.65 = 103,584.12 : x
  2. Step 2: Convert to fraction form
    189,626.52/261,678.65 = 103,584.12/x
  3. Step 3: Cross multiply
    189,626.52x = 261,678.65 × 103,584.12
  4. Step 4: Simplify right side
    189,626.52x = 27,105,751,766.48
  5. Step 5: Solve for x
    x = 27,105,751,766.48/189,626.52
  6. Step 6: Final answer
    x = 142,942.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.