Home / 213,190.04-319,985.99-156,858.39

Finding the Fourth Proportional to 213,190.04, 319,985.99 and 156,858.39

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Solution

The fourth proportional to 213,190.04, 319,985.99 and 156,858.39 is: 235,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,190.04 : 319,985.99 = 156,858.39 : x
  2. Step 2: Convert to fraction form
    213,190.04/319,985.99 = 156,858.39/x
  3. Step 3: Cross multiply
    213,190.04x = 319,985.99 × 156,858.39
  4. Step 4: Simplify right side
    213,190.04x = 50,192,486,429.66
  5. Step 5: Solve for x
    x = 50,192,486,429.66/213,190.04
  6. Step 6: Final answer
    x = 235,435.42

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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.