Home / 189,847.05-261,979.29-104,947.71

Finding the Fourth Proportional to 189,847.05, 261,979.29 and 104,947.71

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Solution

The fourth proportional to 189,847.05, 261,979.29 and 104,947.71 is: 144,822.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,847.05 : 261,979.29 = 104,947.71 : x
  2. Step 2: Convert to fraction form
    189,847.05/261,979.29 = 104,947.71/x
  3. Step 3: Cross multiply
    189,847.05x = 261,979.29 × 104,947.71
  4. Step 4: Simplify right side
    189,847.05x = 27,494,126,552.93
  5. Step 5: Solve for x
    x = 27,494,126,552.93/189,847.05
  6. Step 6: Final answer
    x = 144,822.51

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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.