Home / 189,622.44-261,679.86-103,582.61

Finding the Fourth Proportional to 189,622.44, 261,679.86 and 103,582.61

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Solution

The fourth proportional to 189,622.44, 261,679.86 and 103,582.61 is: 142,944.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,622.44 : 261,679.86 = 103,582.61 : x
  2. Step 2: Convert to fraction form
    189,622.44/261,679.86 = 103,582.61/x
  3. Step 3: Cross multiply
    189,622.44x = 261,679.86 × 103,582.61
  4. Step 4: Simplify right side
    189,622.44x = 27,105,482,556.13
  5. Step 5: Solve for x
    x = 27,105,482,556.13/189,622.44
  6. Step 6: Final answer
    x = 142,944.49

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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.