Home / 120,714.16-166,577.75-66,999.20

Finding the Fourth Proportional to 120,714.16, 166,577.75 and 66,999.20

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Solution

The fourth proportional to 120,714.16, 166,577.75 and 66,999.20 is: 92,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,714.16 : 166,577.75 = 66,999.20 : x
  2. Step 2: Convert to fraction form
    120,714.16/166,577.75 = 66,999.20/x
  3. Step 3: Cross multiply
    120,714.16x = 166,577.75 × 66,999.20
  4. Step 4: Simplify right side
    120,714.16x = 11,160,575,987.80
  5. Step 5: Solve for x
    x = 11,160,575,987.80/120,714.16
  6. Step 6: Final answer
    x = 92,454.57

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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.