Home / 148,930.49-205,525.45-80,947.62

Finding the Fourth Proportional to 148,930.49, 205,525.45 and 80,947.62

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Solution

The fourth proportional to 148,930.49, 205,525.45 and 80,947.62 is: 111,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,930.49 : 205,525.45 = 80,947.62 : x
  2. Step 2: Convert to fraction form
    148,930.49/205,525.45 = 80,947.62/x
  3. Step 3: Cross multiply
    148,930.49x = 205,525.45 × 80,947.62
  4. Step 4: Simplify right side
    148,930.49x = 16,636,794,594.56
  5. Step 5: Solve for x
    x = 16,636,794,594.56/148,930.49
  6. Step 6: Final answer
    x = 111,708.45

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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.