Home / 148,971.39-205,584.48-80,992.95

Finding the Fourth Proportional to 148,971.39, 205,584.48 and 80,992.95

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Solution

The fourth proportional to 148,971.39, 205,584.48 and 80,992.95 is: 111,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.39 : 205,584.48 = 80,992.95 : x
  2. Step 2: Convert to fraction form
    148,971.39/205,584.48 = 80,992.95/x
  3. Step 3: Cross multiply
    148,971.39x = 205,584.48 × 80,992.95
  4. Step 4: Simplify right side
    148,971.39x = 16,650,893,509.42
  5. Step 5: Solve for x
    x = 16,650,893,509.42/148,971.39
  6. Step 6: Final answer
    x = 111,772.42

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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.