Home / 281,137.10-421,658.66-123,323.18

Finding the Fourth Proportional to 281,137.10, 421,658.66 and 123,323.18

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Solution

The fourth proportional to 281,137.10, 421,658.66 and 123,323.18 is: 184,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,137.10 : 421,658.66 = 123,323.18 : x
  2. Step 2: Convert to fraction form
    281,137.10/421,658.66 = 123,323.18/x
  3. Step 3: Cross multiply
    281,137.10x = 421,658.66 × 123,323.18
  4. Step 4: Simplify right side
    281,137.10x = 52,000,285,025.75
  5. Step 5: Solve for x
    x = 52,000,285,025.75/281,137.10
  6. Step 6: Final answer
    x = 184,964.15

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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.