Home / 120,827.40-166,737.21-67,115.88

Finding the Fourth Proportional to 120,827.40, 166,737.21 and 67,115.88

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Solution

The fourth proportional to 120,827.40, 166,737.21 and 67,115.88 is: 92,617.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,827.40 : 166,737.21 = 67,115.88 : x
  2. Step 2: Convert to fraction form
    120,827.40/166,737.21 = 67,115.88/x
  3. Step 3: Cross multiply
    120,827.40x = 166,737.21 × 67,115.88
  4. Step 4: Simplify right side
    120,827.40x = 11,190,714,577.89
  5. Step 5: Solve for x
    x = 11,190,714,577.89/120,827.40
  6. Step 6: Final answer
    x = 92,617.36

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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.