Home / 193,028.77-289,444.43-80,678.32

Finding the Fourth Proportional to 193,028.77, 289,444.43 and 80,678.32

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Solution

The fourth proportional to 193,028.77, 289,444.43 and 80,678.32 is: 120,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,028.77 : 289,444.43 = 80,678.32 : x
  2. Step 2: Convert to fraction form
    193,028.77/289,444.43 = 80,678.32/x
  3. Step 3: Cross multiply
    193,028.77x = 289,444.43 × 80,678.32
  4. Step 4: Simplify right side
    193,028.77x = 23,351,890,867.67
  5. Step 5: Solve for x
    x = 23,351,890,867.67/193,028.77
  6. Step 6: Final answer
    x = 120,976.22

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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.