Home / 181,975.10-251,115.27-100,287.14

Finding the Fourth Proportional to 181,975.10, 251,115.27 and 100,287.14

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Solution

The fourth proportional to 181,975.10, 251,115.27 and 100,287.14 is: 138,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,975.10 : 251,115.27 = 100,287.14 : x
  2. Step 2: Convert to fraction form
    181,975.10/251,115.27 = 100,287.14/x
  3. Step 3: Cross multiply
    181,975.10x = 251,115.27 × 100,287.14
  4. Step 4: Simplify right side
    181,975.10x = 25,183,632,238.63
  5. Step 5: Solve for x
    x = 25,183,632,238.63/181,975.10
  6. Step 6: Final answer
    x = 138,390.54

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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.