Home / 168,025.69-231,989.39-117,637.21

Finding the Fourth Proportional to 168,025.69, 231,989.39 and 117,637.21

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Solution

The fourth proportional to 168,025.69, 231,989.39 and 117,637.21 is: 162,419.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,025.69 : 231,989.39 = 117,637.21 : x
  2. Step 2: Convert to fraction form
    168,025.69/231,989.39 = 117,637.21/x
  3. Step 3: Cross multiply
    168,025.69x = 231,989.39 × 117,637.21
  4. Step 4: Simplify right side
    168,025.69x = 27,290,584,001.02
  5. Step 5: Solve for x
    x = 27,290,584,001.02/168,025.69
  6. Step 6: Final answer
    x = 162,419.12

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1.5x scale

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.