Home / 212,897.73-319,365.04-77,998.44

Finding the Fourth Proportional to 212,897.73, 319,365.04 and 77,998.44

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Solution

The fourth proportional to 212,897.73, 319,365.04 and 77,998.44 is: 117,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,897.73 : 319,365.04 = 77,998.44 : x
  2. Step 2: Convert to fraction form
    212,897.73/319,365.04 = 77,998.44/x
  3. Step 3: Cross multiply
    212,897.73x = 319,365.04 × 77,998.44
  4. Step 4: Simplify right side
    212,897.73x = 24,909,974,910.54
  5. Step 5: Solve for x
    x = 24,909,974,910.54/212,897.73
  6. Step 6: Final answer
    x = 117,004.42

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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.