Home / 141,798.48-195,682.56-78,134.96

Finding the Fourth Proportional to 141,798.48, 195,682.56 and 78,134.96

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Solution

The fourth proportional to 141,798.48, 195,682.56 and 78,134.96 is: 107,826.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,798.48 : 195,682.56 = 78,134.96 : x
  2. Step 2: Convert to fraction form
    141,798.48/195,682.56 = 78,134.96/x
  3. Step 3: Cross multiply
    141,798.48x = 195,682.56 × 78,134.96
  4. Step 4: Simplify right side
    141,798.48x = 15,289,648,998.30
  5. Step 5: Solve for x
    x = 15,289,648,998.30/141,798.48
  6. Step 6: Final answer
    x = 107,826.61

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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.