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Finding the Fourth Proportional to 106,392.80, 146,817.60 and 68,098.40

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Solution

The fourth proportional to 106,392.80, 146,817.60 and 68,098.40 is: 93,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,392.80 : 146,817.60 = 68,098.40 : x
  2. Step 2: Convert to fraction form
    106,392.80/146,817.60 = 68,098.40/x
  3. Step 3: Cross multiply
    106,392.80x = 146,817.60 × 68,098.40
  4. Step 4: Simplify right side
    106,392.80x = 9,998,043,651.84
  5. Step 5: Solve for x
    x = 9,998,043,651.84/106,392.80
  6. Step 6: Final answer
    x = 93,972.93

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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.