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Finding the Fourth Proportional to 160,408.85, 221,379.95 and 88,791.89

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Solution

The fourth proportional to 160,408.85, 221,379.95 and 88,791.89 is: 122,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,408.85 : 221,379.95 = 88,791.89 : x
  2. Step 2: Convert to fraction form
    160,408.85/221,379.95 = 88,791.89/x
  3. Step 3: Cross multiply
    160,408.85x = 221,379.95 × 88,791.89
  4. Step 4: Simplify right side
    160,408.85x = 19,656,743,283.69
  5. Step 5: Solve for x
    x = 19,656,743,283.69/160,408.85
  6. Step 6: Final answer
    x = 122,541.52

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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.