Home / 215,928.06-297,981.24-120,440.94

Finding the Fourth Proportional to 215,928.06, 297,981.24 and 120,440.94

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Solution

The fourth proportional to 215,928.06, 297,981.24 and 120,440.94 is: 166,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,928.06 : 297,981.24 = 120,440.94 : x
  2. Step 2: Convert to fraction form
    215,928.06/297,981.24 = 120,440.94/x
  3. Step 3: Cross multiply
    215,928.06x = 297,981.24 × 120,440.94
  4. Step 4: Simplify right side
    215,928.06x = 35,889,140,647.97
  5. Step 5: Solve for x
    x = 35,889,140,647.97/215,928.06
  6. Step 6: Final answer
    x = 166,208.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.