Home / 213,015.42-319,194.67-104,820.58

Finding the Fourth Proportional to 213,015.42, 319,194.67 and 104,820.58

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Solution

The fourth proportional to 213,015.42, 319,194.67 and 104,820.58 is: 157,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,015.42 : 319,194.67 = 104,820.58 : x
  2. Step 2: Convert to fraction form
    213,015.42/319,194.67 = 104,820.58/x
  3. Step 3: Cross multiply
    213,015.42x = 319,194.67 × 104,820.58
  4. Step 4: Simplify right side
    213,015.42x = 33,458,170,442.31
  5. Step 5: Solve for x
    x = 33,458,170,442.31/213,015.42
  6. Step 6: Final answer
    x = 157,069.24

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1.5x scale

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.