Home / 189,439.92-261,426.56-104,556.38

Finding the Fourth Proportional to 189,439.92, 261,426.56 and 104,556.38

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Solution

The fourth proportional to 189,439.92, 261,426.56 and 104,556.38 is: 144,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.92 : 261,426.56 = 104,556.38 : x
  2. Step 2: Convert to fraction form
    189,439.92/261,426.56 = 104,556.38/x
  3. Step 3: Cross multiply
    189,439.92x = 261,426.56 × 104,556.38
  4. Step 4: Simplify right side
    189,439.92x = 27,333,812,919.54
  5. Step 5: Solve for x
    x = 27,333,812,919.54/189,439.92
  6. Step 6: Final answer
    x = 144,287.50

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1.5x scale

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.