Home / 120,348.36-166,069.22-66,631.41

Finding the Fourth Proportional to 120,348.36, 166,069.22 and 66,631.41

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Solution

The fourth proportional to 120,348.36, 166,069.22 and 66,631.41 is: 91,944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.36 : 166,069.22 = 66,631.41 : x
  2. Step 2: Convert to fraction form
    120,348.36/166,069.22 = 66,631.41/x
  3. Step 3: Cross multiply
    120,348.36x = 166,069.22 × 66,631.41
  4. Step 4: Simplify right side
    120,348.36x = 11,065,425,953.04
  5. Step 5: Solve for x
    x = 11,065,425,953.04/120,348.36
  6. Step 6: Final answer
    x = 91,944.97

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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.