Home / 212,786.76-293,563.32-122,109.96

Finding the Fourth Proportional to 212,786.76, 293,563.32 and 122,109.96

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Solution

The fourth proportional to 212,786.76, 293,563.32 and 122,109.96 is: 168,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,786.76 : 293,563.32 = 122,109.96 : x
  2. Step 2: Convert to fraction form
    212,786.76/293,563.32 = 122,109.96/x
  3. Step 3: Cross multiply
    212,786.76x = 293,563.32 × 122,109.96
  4. Step 4: Simplify right side
    212,786.76x = 35,847,005,262.67
  5. Step 5: Solve for x
    x = 35,847,005,262.67/212,786.76
  6. Step 6: Final answer
    x = 168,464.45

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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.