Home / 148,539.69-204,984.88-80,556.66

Finding the Fourth Proportional to 148,539.69, 204,984.88 and 80,556.66

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Solution

The fourth proportional to 148,539.69, 204,984.88 and 80,556.66 is: 111,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,539.69 : 204,984.88 = 80,556.66 : x
  2. Step 2: Convert to fraction form
    148,539.69/204,984.88 = 80,556.66/x
  3. Step 3: Cross multiply
    148,539.69x = 204,984.88 × 80,556.66
  4. Step 4: Simplify right side
    148,539.69x = 16,512,897,081.91
  5. Step 5: Solve for x
    x = 16,512,897,081.91/148,539.69
  6. Step 6: Final answer
    x = 111,168.25

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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.