Home / 212,830.26-319,339.43-111,604.16

Finding the Fourth Proportional to 212,830.26, 319,339.43 and 111,604.16

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Solution

The fourth proportional to 212,830.26, 319,339.43 and 111,604.16 is: 167,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,830.26 : 319,339.43 = 111,604.16 : x
  2. Step 2: Convert to fraction form
    212,830.26/319,339.43 = 111,604.16/x
  3. Step 3: Cross multiply
    212,830.26x = 319,339.43 × 111,604.16
  4. Step 4: Simplify right side
    212,830.26x = 35,639,606,685.31
  5. Step 5: Solve for x
    x = 35,639,606,685.31/212,830.26
  6. Step 6: Final answer
    x = 167,455.54

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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.