Home / 120,531.56-166,322.37-66,812.01

Finding the Fourth Proportional to 120,531.56, 166,322.37 and 66,812.01

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Solution

The fourth proportional to 120,531.56, 166,322.37 and 66,812.01 is: 92,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,531.56 : 166,322.37 = 66,812.01 : x
  2. Step 2: Convert to fraction form
    120,531.56/166,322.37 = 66,812.01/x
  3. Step 3: Cross multiply
    120,531.56x = 166,322.37 × 66,812.01
  4. Step 4: Simplify right side
    120,531.56x = 11,112,332,098.21
  5. Step 5: Solve for x
    x = 11,112,332,098.21/120,531.56
  6. Step 6: Final answer
    x = 92,194.38

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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.