Home / 95,502.85-131,889.47-78,673.88

Finding the Fourth Proportional to 95,502.85, 131,889.47 and 78,673.88

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Solution

The fourth proportional to 95,502.85, 131,889.47 and 78,673.88 is: 108,648.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,502.85 : 131,889.47 = 78,673.88 : x
  2. Step 2: Convert to fraction form
    95,502.85/131,889.47 = 78,673.88/x
  3. Step 3: Cross multiply
    95,502.85x = 131,889.47 × 78,673.88
  4. Step 4: Simplify right side
    95,502.85x = 10,376,256,272.40
  5. Step 5: Solve for x
    x = 10,376,256,272.40/95,502.85
  6. Step 6: Final answer
    x = 108,648.66

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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.