Home / 120,343.56-166,075.43-66,629.54

Finding the Fourth Proportional to 120,343.56, 166,075.43 and 66,629.54

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Solution

The fourth proportional to 120,343.56, 166,075.43 and 66,629.54 is: 91,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,343.56 : 166,075.43 = 66,629.54 : x
  2. Step 2: Convert to fraction form
    120,343.56/166,075.43 = 66,629.54/x
  3. Step 3: Cross multiply
    120,343.56x = 166,075.43 × 66,629.54
  4. Step 4: Simplify right side
    120,343.56x = 11,065,529,506.20
  5. Step 5: Solve for x
    x = 11,065,529,506.20/120,343.56
  6. Step 6: Final answer
    x = 91,949.49

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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.