Home / 213,090.27-319,552.31-79,897.95

Finding the Fourth Proportional to 213,090.27, 319,552.31 and 79,897.95

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Solution

The fourth proportional to 213,090.27, 319,552.31 and 79,897.95 is: 119,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,090.27 : 319,552.31 = 79,897.95 : x
  2. Step 2: Convert to fraction form
    213,090.27/319,552.31 = 79,897.95/x
  3. Step 3: Cross multiply
    213,090.27x = 319,552.31 × 79,897.95
  4. Step 4: Simplify right side
    213,090.27x = 25,531,574,087.27
  5. Step 5: Solve for x
    x = 25,531,574,087.27/213,090.27
  6. Step 6: Final answer
    x = 119,815.77

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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.