Home / 189,649.08-261,723.24-109,076.51

Finding the Fourth Proportional to 189,649.08, 261,723.24 and 109,076.51

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Solution

The fourth proportional to 189,649.08, 261,723.24 and 109,076.51 is: 150,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,649.08 : 261,723.24 = 109,076.51 : x
  2. Step 2: Convert to fraction form
    189,649.08/261,723.24 = 109,076.51/x
  3. Step 3: Cross multiply
    189,649.08x = 261,723.24 × 109,076.51
  4. Step 4: Simplify right side
    189,649.08x = 28,547,856,296.48
  5. Step 5: Solve for x
    x = 28,547,856,296.48/189,649.08
  6. Step 6: Final answer
    x = 150,529.90

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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.