Home / 189,439.22-261,424.87-104,556.29

Finding the Fourth Proportional to 189,439.22, 261,424.87 and 104,556.29

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Solution

The fourth proportional to 189,439.22, 261,424.87 and 104,556.29 is: 144,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,439.22 : 261,424.87 = 104,556.29 : x
  2. Step 2: Convert to fraction form
    189,439.22/261,424.87 = 104,556.29/x
  3. Step 3: Cross multiply
    189,439.22x = 261,424.87 × 104,556.29
  4. Step 4: Simplify right side
    189,439.22x = 27,333,612,952.42
  5. Step 5: Solve for x
    x = 27,333,612,952.42/189,439.22
  6. Step 6: Final answer
    x = 144,286.98

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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.