Home / 168,039.38-231,980.08-113,877.69

Finding the Fourth Proportional to 168,039.38, 231,980.08 and 113,877.69

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Solution

The fourth proportional to 168,039.38, 231,980.08 and 113,877.69 is: 157,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,039.38 : 231,980.08 = 113,877.69 : x
  2. Step 2: Convert to fraction form
    168,039.38/231,980.08 = 113,877.69/x
  3. Step 3: Cross multiply
    168,039.38x = 231,980.08 × 113,877.69
  4. Step 4: Simplify right side
    168,039.38x = 26,417,354,476.51
  5. Step 5: Solve for x
    x = 26,417,354,476.51/168,039.38
  6. Step 6: Final answer
    x = 157,209.31

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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.