Home / 189,213.33-261,114.12-104,330.61

Finding the Fourth Proportional to 189,213.33, 261,114.12 and 104,330.61

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Solution

The fourth proportional to 189,213.33, 261,114.12 and 104,330.61 is: 143,976.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,213.33 : 261,114.12 = 104,330.61 : x
  2. Step 2: Convert to fraction form
    189,213.33/261,114.12 = 104,330.61/x
  3. Step 3: Cross multiply
    189,213.33x = 261,114.12 × 104,330.61
  4. Step 4: Simplify right side
    189,213.33x = 27,242,195,419.21
  5. Step 5: Solve for x
    x = 27,242,195,419.21/189,213.33
  6. Step 6: Final answer
    x = 143,976.09

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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.