Home / 120,974.07-181,461.12-54,336.39

Finding the Fourth Proportional to 120,974.07, 181,461.12 and 54,336.39

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Solution

The fourth proportional to 120,974.07, 181,461.12 and 54,336.39 is: 81,504.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,974.07 : 181,461.12 = 54,336.39 : x
  2. Step 2: Convert to fraction form
    120,974.07/181,461.12 = 54,336.39/x
  3. Step 3: Cross multiply
    120,974.07x = 181,461.12 × 54,336.39
  4. Step 4: Simplify right side
    120,974.07x = 9,859,942,186.16
  5. Step 5: Solve for x
    x = 9,859,942,186.16/120,974.07
  6. Step 6: Final answer
    x = 81,504.59

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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.