Home / 189,169.47-261,055.68-104,289.57

Finding the Fourth Proportional to 189,169.47, 261,055.68 and 104,289.57

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Solution

The fourth proportional to 189,169.47, 261,055.68 and 104,289.57 is: 143,920.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,169.47 : 261,055.68 = 104,289.57 : x
  2. Step 2: Convert to fraction form
    189,169.47/261,055.68 = 104,289.57/x
  3. Step 3: Cross multiply
    189,169.47x = 261,055.68 × 104,289.57
  4. Step 4: Simplify right side
    189,169.47x = 27,225,384,613.26
  5. Step 5: Solve for x
    x = 27,225,384,613.26/189,169.47
  6. Step 6: Final answer
    x = 143,920.61

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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.