Home / 120,901.76-181,010.46-92,406.06

Finding the Fourth Proportional to 120,901.76, 181,010.46 and 92,406.06

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Solution

The fourth proportional to 120,901.76, 181,010.46 and 92,406.06 is: 138,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.76 : 181,010.46 = 92,406.06 : x
  2. Step 2: Convert to fraction form
    120,901.76/181,010.46 = 92,406.06/x
  3. Step 3: Cross multiply
    120,901.76x = 181,010.46 × 92,406.06
  4. Step 4: Simplify right side
    120,901.76x = 16,726,462,517.58
  5. Step 5: Solve for x
    x = 16,726,462,517.58/120,901.76
  6. Step 6: Final answer
    x = 138,347.56

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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.