Home / 189,731.41-261,834.33-103,694.02

Finding the Fourth Proportional to 189,731.41, 261,834.33 and 103,694.02

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Solution

The fourth proportional to 189,731.41, 261,834.33 and 103,694.02 is: 143,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,731.41 : 261,834.33 = 103,694.02 : x
  2. Step 2: Convert to fraction form
    189,731.41/261,834.33 = 103,694.02/x
  3. Step 3: Cross multiply
    189,731.41x = 261,834.33 × 103,694.02
  4. Step 4: Simplify right side
    189,731.41x = 27,150,654,251.71
  5. Step 5: Solve for x
    x = 27,150,654,251.71/189,731.41
  6. Step 6: Final answer
    x = 143,100.47

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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.