Home / 120,714.66-166,578.44-66,999.70

Finding the Fourth Proportional to 120,714.66, 166,578.44 and 66,999.70

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Solution

The fourth proportional to 120,714.66, 166,578.44 and 66,999.70 is: 92,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,714.66 : 166,578.44 = 66,999.70 : x
  2. Step 2: Convert to fraction form
    120,714.66/166,578.44 = 66,999.70/x
  3. Step 3: Cross multiply
    120,714.66x = 166,578.44 × 66,999.70
  4. Step 4: Simplify right side
    120,714.66x = 11,160,705,506.47
  5. Step 5: Solve for x
    x = 11,160,705,506.47/120,714.66
  6. Step 6: Final answer
    x = 92,455.26

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1.5x scale

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.