Home / 120,776.40-181,093.68-36,511.20

Finding the Fourth Proportional to 120,776.40, 181,093.68 and 36,511.20

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Solution

The fourth proportional to 120,776.40, 181,093.68 and 36,511.20 is: 54,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,776.40 : 181,093.68 = 36,511.20 : x
  2. Step 2: Convert to fraction form
    120,776.40/181,093.68 = 36,511.20/x
  3. Step 3: Cross multiply
    120,776.40x = 181,093.68 × 36,511.20
  4. Step 4: Simplify right side
    120,776.40x = 6,611,947,569.22
  5. Step 5: Solve for x
    x = 6,611,947,569.22/120,776.40
  6. Step 6: Final answer
    x = 54,745.36

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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.