Home / 120,380.44-166,126.08-66,666.28

Finding the Fourth Proportional to 120,380.44, 166,126.08 and 66,666.28

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Solution

The fourth proportional to 120,380.44, 166,126.08 and 66,666.28 is: 92,000.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,380.44 : 166,126.08 = 66,666.28 : x
  2. Step 2: Convert to fraction form
    120,380.44/166,126.08 = 66,666.28/x
  3. Step 3: Cross multiply
    120,380.44x = 166,126.08 × 66,666.28
  4. Step 4: Simplify right side
    120,380.44x = 11,075,007,764.58
  5. Step 5: Solve for x
    x = 11,075,007,764.58/120,380.44
  6. Step 6: Final answer
    x = 92,000.06

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1.5x scale

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.