Home / 120,784.98-166,680.06-67,068.60

Finding the Fourth Proportional to 120,784.98, 166,680.06 and 67,068.60

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Solution

The fourth proportional to 120,784.98, 166,680.06 and 67,068.60 is: 92,552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,784.98 : 166,680.06 = 67,068.60 : x
  2. Step 2: Convert to fraction form
    120,784.98/166,680.06 = 67,068.60/x
  3. Step 3: Cross multiply
    120,784.98x = 166,680.06 × 67,068.60
  4. Step 4: Simplify right side
    120,784.98x = 11,178,998,272.12
  5. Step 5: Solve for x
    x = 11,178,998,272.12/120,784.98
  6. Step 6: Final answer
    x = 92,552.88

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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.