Home / 154,021.20-230,916.60-83,979.60

Finding the Fourth Proportional to 154,021.20, 230,916.60 and 83,979.60

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Solution

The fourth proportional to 154,021.20, 230,916.60 and 83,979.60 is: 125,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.20 : 230,916.60 = 83,979.60 : x
  2. Step 2: Convert to fraction form
    154,021.20/230,916.60 = 83,979.60/x
  3. Step 3: Cross multiply
    154,021.20x = 230,916.60 × 83,979.60
  4. Step 4: Simplify right side
    154,021.20x = 19,392,283,701.36
  5. Step 5: Solve for x
    x = 19,392,283,701.36/154,021.20
  6. Step 6: Final answer
    x = 125,906.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.