Home / 100,897.44-139,237.20-55,574.52

Finding the Fourth Proportional to 100,897.44, 139,237.20 and 55,574.52

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Solution

The fourth proportional to 100,897.44, 139,237.20 and 55,574.52 is: 76,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,897.44 : 139,237.20 = 55,574.52 : x
  2. Step 2: Convert to fraction form
    100,897.44/139,237.20 = 55,574.52/x
  3. Step 3: Cross multiply
    100,897.44x = 139,237.20 × 55,574.52
  4. Step 4: Simplify right side
    100,897.44x = 7,738,040,556.14
  5. Step 5: Solve for x
    x = 7,738,040,556.14/100,897.44
  6. Step 6: Final answer
    x = 76,692.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.