Home / 120,531.91-166,322.83-66,812.35

Finding the Fourth Proportional to 120,531.91, 166,322.83 and 66,812.35

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Solution

The fourth proportional to 120,531.91, 166,322.83 and 66,812.35 is: 92,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,531.91 : 166,322.83 = 66,812.35 : x
  2. Step 2: Convert to fraction form
    120,531.91/166,322.83 = 66,812.35/x
  3. Step 3: Cross multiply
    120,531.91x = 166,322.83 × 66,812.35
  4. Step 4: Simplify right side
    120,531.91x = 11,112,418,796.89
  5. Step 5: Solve for x
    x = 11,112,418,796.89/120,531.91
  6. Step 6: Final answer
    x = 92,194.83

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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.