Home / 222,139.28-306,559.86-121,537.28

Finding the Fourth Proportional to 222,139.28, 306,559.86 and 121,537.28

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Solution

The fourth proportional to 222,139.28, 306,559.86 and 121,537.28 is: 167,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,139.28 : 306,559.86 = 121,537.28 : x
  2. Step 2: Convert to fraction form
    222,139.28/306,559.86 = 121,537.28/x
  3. Step 3: Cross multiply
    222,139.28x = 306,559.86 × 121,537.28
  4. Step 4: Simplify right side
    222,139.28x = 37,258,451,541.58
  5. Step 5: Solve for x
    x = 37,258,451,541.58/222,139.28
  6. Step 6: Final answer
    x = 167,725.63

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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.