Home / 223,916.81-309,005.46-121,942.44

Finding the Fourth Proportional to 223,916.81, 309,005.46 and 121,942.44

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Solution

The fourth proportional to 223,916.81, 309,005.46 and 121,942.44 is: 168,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,916.81 : 309,005.46 = 121,942.44 : x
  2. Step 2: Convert to fraction form
    223,916.81/309,005.46 = 121,942.44/x
  3. Step 3: Cross multiply
    223,916.81x = 309,005.46 × 121,942.44
  4. Step 4: Simplify right side
    223,916.81x = 37,680,879,765.72
  5. Step 5: Solve for x
    x = 37,680,879,765.72/223,916.81
  6. Step 6: Final answer
    x = 168,280.71

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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.