Home / 194,785.86-292,195.47-68,415.12

Finding the Fourth Proportional to 194,785.86, 292,195.47 and 68,415.12

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Solution

The fourth proportional to 194,785.86, 292,195.47 and 68,415.12 is: 102,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,785.86 : 292,195.47 = 68,415.12 : x
  2. Step 2: Convert to fraction form
    194,785.86/292,195.47 = 68,415.12/x
  3. Step 3: Cross multiply
    194,785.86x = 292,195.47 × 68,415.12
  4. Step 4: Simplify right side
    194,785.86x = 19,990,588,143.51
  5. Step 5: Solve for x
    x = 19,990,588,143.51/194,785.86
  6. Step 6: Final answer
    x = 102,628.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.