Home / 120,341.92-166,069.86-66,625.78

Finding the Fourth Proportional to 120,341.92, 166,069.86 and 66,625.78

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Solution

The fourth proportional to 120,341.92, 166,069.86 and 66,625.78 is: 91,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,341.92 : 166,069.86 = 66,625.78 : x
  2. Step 2: Convert to fraction form
    120,341.92/166,069.86 = 66,625.78/x
  3. Step 3: Cross multiply
    120,341.92x = 166,069.86 × 66,625.78
  4. Step 4: Simplify right side
    120,341.92x = 11,064,533,956.99
  5. Step 5: Solve for x
    x = 11,064,533,956.99/120,341.92
  6. Step 6: Final answer
    x = 91,942.47

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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.