Home / 345,880.26-518,835.94-105,976.59

Finding the Fourth Proportional to 345,880.26, 518,835.94 and 105,976.59

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Solution

The fourth proportional to 345,880.26, 518,835.94 and 105,976.59 is: 158,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,880.26 : 518,835.94 = 105,976.59 : x
  2. Step 2: Convert to fraction form
    345,880.26/518,835.94 = 105,976.59/x
  3. Step 3: Cross multiply
    345,880.26x = 518,835.94 × 105,976.59
  4. Step 4: Simplify right side
    345,880.26x = 54,984,463,690.64
  5. Step 5: Solve for x
    x = 54,984,463,690.64/345,880.26
  6. Step 6: Final answer
    x = 158,969.65

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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.