Home / 212,418.39-293,103.08-121,757.68

Finding the Fourth Proportional to 212,418.39, 293,103.08 and 121,757.68

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Solution

The fourth proportional to 212,418.39, 293,103.08 and 121,757.68 is: 168,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,418.39 : 293,103.08 = 121,757.68 : x
  2. Step 2: Convert to fraction form
    212,418.39/293,103.08 = 121,757.68/x
  3. Step 3: Cross multiply
    212,418.39x = 293,103.08 × 121,757.68
  4. Step 4: Simplify right side
    212,418.39x = 35,687,548,947.35
  5. Step 5: Solve for x
    x = 35,687,548,947.35/212,418.39
  6. Step 6: Final answer
    x = 168,005.93

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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.