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Finding the Fourth Proportional to 146,656.80, 219,466.80 and 100,000.80

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Solution

The fourth proportional to 146,656.80, 219,466.80 and 100,000.80 is: 149,647.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,656.80 : 219,466.80 = 100,000.80 : x
  2. Step 2: Convert to fraction form
    146,656.80/219,466.80 = 100,000.80/x
  3. Step 3: Cross multiply
    146,656.80x = 219,466.80 × 100,000.80
  4. Step 4: Simplify right side
    146,656.80x = 21,946,855,573.44
  5. Step 5: Solve for x
    x = 21,946,855,573.44/146,656.80
  6. Step 6: Final answer
    x = 149,647.72

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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.