Home / 130,452.39-178,675.32-122,792.43

Finding the Fourth Proportional to 130,452.39, 178,675.32 and 122,792.43

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Solution

The fourth proportional to 130,452.39, 178,675.32 and 122,792.43 is: 168,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,452.39 : 178,675.32 = 122,792.43 : x
  2. Step 2: Convert to fraction form
    130,452.39/178,675.32 = 122,792.43/x
  3. Step 3: Cross multiply
    130,452.39x = 178,675.32 × 122,792.43
  4. Step 4: Simplify right side
    130,452.39x = 21,939,976,723.83
  5. Step 5: Solve for x
    x = 21,939,976,723.83/130,452.39
  6. Step 6: Final answer
    x = 168,183.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.