Home / 117,889.17-162,687.09-64,174.61

Finding the Fourth Proportional to 117,889.17, 162,687.09 and 64,174.61

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Solution

The fourth proportional to 117,889.17, 162,687.09 and 64,174.61 is: 88,560.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.17 : 162,687.09 = 64,174.61 : x
  2. Step 2: Convert to fraction form
    117,889.17/162,687.09 = 64,174.61/x
  3. Step 3: Cross multiply
    117,889.17x = 162,687.09 × 64,174.61
  4. Step 4: Simplify right side
    117,889.17x = 10,440,379,739.35
  5. Step 5: Solve for x
    x = 10,440,379,739.35/117,889.17
  6. Step 6: Final answer
    x = 88,560.97

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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.