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Finding the Fourth Proportional to 147,662.30, 221,238.30 and 68,614.40

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Solution

The fourth proportional to 147,662.30, 221,238.30 and 68,614.40 is: 102,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,662.30 : 221,238.30 = 68,614.40 : x
  2. Step 2: Convert to fraction form
    147,662.30/221,238.30 = 68,614.40/x
  3. Step 3: Cross multiply
    147,662.30x = 221,238.30 × 68,614.40
  4. Step 4: Simplify right side
    147,662.30x = 15,180,133,211.52
  5. Step 5: Solve for x
    x = 15,180,133,211.52/147,662.30
  6. Step 6: Final answer
    x = 102,803.04

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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.