Home / 120,764.30-181,146.45-92,738.30

Finding the Fourth Proportional to 120,764.30, 181,146.45 and 92,738.30

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Solution

The fourth proportional to 120,764.30, 181,146.45 and 92,738.30 is: 139,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,764.30 : 181,146.45 = 92,738.30 : x
  2. Step 2: Convert to fraction form
    120,764.30/181,146.45 = 92,738.30/x
  3. Step 3: Cross multiply
    120,764.30x = 181,146.45 × 92,738.30
  4. Step 4: Simplify right side
    120,764.30x = 16,799,213,824.04
  5. Step 5: Solve for x
    x = 16,799,213,824.04/120,764.30
  6. Step 6: Final answer
    x = 139,107.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.