Home / 117,176.90-161,714.07-66,198.98

Finding the Fourth Proportional to 117,176.90, 161,714.07 and 66,198.98

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Solution

The fourth proportional to 117,176.90, 161,714.07 and 66,198.98 is: 91,360.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,176.90 : 161,714.07 = 66,198.98 : x
  2. Step 2: Convert to fraction form
    117,176.90/161,714.07 = 66,198.98/x
  3. Step 3: Cross multiply
    117,176.90x = 161,714.07 × 66,198.98
  4. Step 4: Simplify right side
    117,176.90x = 10,705,306,485.65
  5. Step 5: Solve for x
    x = 10,705,306,485.65/117,176.90
  6. Step 6: Final answer
    x = 91,360.22

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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.