Home / 168,088.51-231,996.57-100,145.29

Finding the Fourth Proportional to 168,088.51, 231,996.57 and 100,145.29

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Solution

The fourth proportional to 168,088.51, 231,996.57 and 100,145.29 is: 138,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,088.51 : 231,996.57 = 100,145.29 : x
  2. Step 2: Convert to fraction form
    168,088.51/231,996.57 = 100,145.29/x
  3. Step 3: Cross multiply
    168,088.51x = 231,996.57 × 100,145.29
  4. Step 4: Simplify right side
    168,088.51x = 23,233,362,120.95
  5. Step 5: Solve for x
    x = 23,233,362,120.95/168,088.51
  6. Step 6: Final answer
    x = 138,221.00

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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.