Home / 213,208.50-319,814.37-72,968.34

Finding the Fourth Proportional to 213,208.50, 319,814.37 and 72,968.34

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Solution

The fourth proportional to 213,208.50, 319,814.37 and 72,968.34 is: 109,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,208.50 : 319,814.37 = 72,968.34 : x
  2. Step 2: Convert to fraction form
    213,208.50/319,814.37 = 72,968.34/x
  3. Step 3: Cross multiply
    213,208.50x = 319,814.37 × 72,968.34
  4. Step 4: Simplify right side
    213,208.50x = 23,336,323,687.05
  5. Step 5: Solve for x
    x = 23,336,323,687.05/213,208.50
  6. Step 6: Final answer
    x = 109,453.06

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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.