Home / 168,040.56-231,740.16-122,646.69

Finding the Fourth Proportional to 168,040.56, 231,740.16 and 122,646.69

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Solution

The fourth proportional to 168,040.56, 231,740.16 and 122,646.69 is: 169,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,040.56 : 231,740.16 = 122,646.69 : x
  2. Step 2: Convert to fraction form
    168,040.56/231,740.16 = 122,646.69/x
  3. Step 3: Cross multiply
    168,040.56x = 231,740.16 × 122,646.69
  4. Step 4: Simplify right side
    168,040.56x = 28,422,163,564.07
  5. Step 5: Solve for x
    x = 28,422,163,564.07/168,040.56
  6. Step 6: Final answer
    x = 169,138.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.