Home / 120,677.16-166,531.98-66,961.74

Finding the Fourth Proportional to 120,677.16, 166,531.98 and 66,961.74

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Solution

The fourth proportional to 120,677.16, 166,531.98 and 66,961.74 is: 92,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,677.16 : 166,531.98 = 66,961.74 : x
  2. Step 2: Convert to fraction form
    120,677.16/166,531.98 = 66,961.74/x
  3. Step 3: Cross multiply
    120,677.16x = 166,531.98 × 66,961.74
  4. Step 4: Simplify right side
    120,677.16x = 11,151,271,146.45
  5. Step 5: Solve for x
    x = 11,151,271,146.45/120,677.16
  6. Step 6: Final answer
    x = 92,405.81

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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.