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Finding the Fourth Proportional to 148,963.58, 223,146.19 and 68,889.30

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Solution

The fourth proportional to 148,963.58, 223,146.19 and 68,889.30 is: 103,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,963.58 : 223,146.19 = 68,889.30 : x
  2. Step 2: Convert to fraction form
    148,963.58/223,146.19 = 68,889.30/x
  3. Step 3: Cross multiply
    148,963.58x = 223,146.19 × 68,889.30
  4. Step 4: Simplify right side
    148,963.58x = 15,372,385,362.17
  5. Step 5: Solve for x
    x = 15,372,385,362.17/148,963.58
  6. Step 6: Final answer
    x = 103,195.60

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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.