Home / 213,954.82-320,935.87-80,897.74

Finding the Fourth Proportional to 213,954.82, 320,935.87 and 80,897.74

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Solution

The fourth proportional to 213,954.82, 320,935.87 and 80,897.74 is: 121,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,954.82 : 320,935.87 = 80,897.74 : x
  2. Step 2: Convert to fraction form
    213,954.82/320,935.87 = 80,897.74/x
  3. Step 3: Cross multiply
    213,954.82x = 320,935.87 × 80,897.74
  4. Step 4: Simplify right side
    213,954.82x = 25,962,985,866.72
  5. Step 5: Solve for x
    x = 25,962,985,866.72/213,954.82
  6. Step 6: Final answer
    x = 121,347.98

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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.