Home / 120,710.21-166,577.78-66,995.87

Finding the Fourth Proportional to 120,710.21, 166,577.78 and 66,995.87

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Solution

The fourth proportional to 120,710.21, 166,577.78 and 66,995.87 is: 92,453.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,710.21 : 166,577.78 = 66,995.87 : x
  2. Step 2: Convert to fraction form
    120,710.21/166,577.78 = 66,995.87/x
  3. Step 3: Cross multiply
    120,710.21x = 166,577.78 × 66,995.87
  4. Step 4: Simplify right side
    120,710.21x = 11,160,022,628.37
  5. Step 5: Solve for x
    x = 11,160,022,628.37/120,710.21
  6. Step 6: Final answer
    x = 92,453.02

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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.