Home / 120,714.17-166,577.73-66,999.20

Finding the Fourth Proportional to 120,714.17, 166,577.73 and 66,999.20

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Solution

The fourth proportional to 120,714.17, 166,577.73 and 66,999.20 is: 92,454.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,714.17 : 166,577.73 = 66,999.20 : x
  2. Step 2: Convert to fraction form
    120,714.17/166,577.73 = 66,999.20/x
  3. Step 3: Cross multiply
    120,714.17x = 166,577.73 × 66,999.20
  4. Step 4: Simplify right side
    120,714.17x = 11,160,574,647.82
  5. Step 5: Solve for x
    x = 11,160,574,647.82/120,714.17
  6. Step 6: Final answer
    x = 92,454.55

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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.