Home / 120,626.35-166,484.29-66,928.66

Finding the Fourth Proportional to 120,626.35, 166,484.29 and 66,928.66

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Solution

The fourth proportional to 120,626.35, 166,484.29 and 66,928.66 is: 92,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,626.35 : 166,484.29 = 66,928.66 : x
  2. Step 2: Convert to fraction form
    120,626.35/166,484.29 = 66,928.66/x
  3. Step 3: Cross multiply
    120,626.35x = 166,484.29 × 66,928.66
  4. Step 4: Simplify right side
    120,626.35x = 11,142,570,825.07
  5. Step 5: Solve for x
    x = 11,142,570,825.07/120,626.35
  6. Step 6: Final answer
    x = 92,372.61

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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.