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Finding the Fourth Proportional to 146,394.90, 219,425.04 and 66,493.80

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Solution

The fourth proportional to 146,394.90, 219,425.04 and 66,493.80 is: 99,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,394.90 : 219,425.04 = 66,493.80 : x
  2. Step 2: Convert to fraction form
    146,394.90/219,425.04 = 66,493.80/x
  3. Step 3: Cross multiply
    146,394.90x = 219,425.04 × 66,493.80
  4. Step 4: Simplify right side
    146,394.90x = 14,590,404,724.75
  5. Step 5: Solve for x
    x = 14,590,404,724.75/146,394.90
  6. Step 6: Final answer
    x = 99,664.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.