Home / 212,434.28-293,163-121,805

Finding the Fourth Proportional to 212,434.28, 293,163 and 121,805

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Solution

The fourth proportional to 212,434.28, 293,163 and 121,805 is: 168,093.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.28 : 293,163 = 121,805 : x
  2. Step 2: Convert to fraction form
    212,434.28/293,163 = 121,805/x
  3. Step 3: Cross multiply
    212,434.28x = 293,163 × 121,805
  4. Step 4: Simplify right side
    212,434.28x = 35,708,719,215
  5. Step 5: Solve for x
    x = 35,708,719,215/212,434.28
  6. Step 6: Final answer
    x = 168,093.02

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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.