Home / 345,936.41-518,979.78-106,051.21

Finding the Fourth Proportional to 345,936.41, 518,979.78 and 106,051.21

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Solution

The fourth proportional to 345,936.41, 518,979.78 and 106,051.21 is: 159,099.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,936.41 : 518,979.78 = 106,051.21 : x
  2. Step 2: Convert to fraction form
    345,936.41/518,979.78 = 106,051.21/x
  3. Step 3: Cross multiply
    345,936.41x = 518,979.78 × 106,051.21
  4. Step 4: Simplify right side
    345,936.41x = 55,038,432,337.08
  5. Step 5: Solve for x
    x = 55,038,432,337.08/345,936.41
  6. Step 6: Final answer
    x = 159,099.86

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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.