Home / 189,742.78-261,834.96-104,854.78

Finding the Fourth Proportional to 189,742.78, 261,834.96 and 104,854.78

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Solution

The fourth proportional to 189,742.78, 261,834.96 and 104,854.78 is: 144,694.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,742.78 : 261,834.96 = 104,854.78 : x
  2. Step 2: Convert to fraction form
    189,742.78/261,834.96 = 104,854.78/x
  3. Step 3: Cross multiply
    189,742.78x = 261,834.96 × 104,854.78
  4. Step 4: Simplify right side
    189,742.78x = 27,454,647,127.11
  5. Step 5: Solve for x
    x = 27,454,647,127.11/189,742.78
  6. Step 6: Final answer
    x = 144,694.03

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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.