Home / 120,929.87-181,394.22-30,972.41

Finding the Fourth Proportional to 120,929.87, 181,394.22 and 30,972.41

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Solution

The fourth proportional to 120,929.87, 181,394.22 and 30,972.41 is: 46,458.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,929.87 : 181,394.22 = 30,972.41 : x
  2. Step 2: Convert to fraction form
    120,929.87/181,394.22 = 30,972.41/x
  3. Step 3: Cross multiply
    120,929.87x = 181,394.22 × 30,972.41
  4. Step 4: Simplify right side
    120,929.87x = 5,618,216,153.47
  5. Step 5: Solve for x
    x = 5,618,216,153.47/120,929.87
  6. Step 6: Final answer
    x = 46,458.47

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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.