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Finding the Fourth Proportional to 122,378.80, 168,880.14 and 67,927.82

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Solution

The fourth proportional to 122,378.80, 168,880.14 and 67,927.82 is: 93,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,378.80 : 168,880.14 = 67,927.82 : x
  2. Step 2: Convert to fraction form
    122,378.80/168,880.14 = 67,927.82/x
  3. Step 3: Cross multiply
    122,378.80x = 168,880.14 × 67,927.82
  4. Step 4: Simplify right side
    122,378.80x = 11,471,658,907.09
  5. Step 5: Solve for x
    x = 11,471,658,907.09/122,378.80
  6. Step 6: Final answer
    x = 93,738.94

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1.5x scale

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.