Home / 181,988-251,145.27-100,319.16

Finding the Fourth Proportional to 181,988, 251,145.27 and 100,319.16

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Solution

The fourth proportional to 181,988, 251,145.27 and 100,319.16 is: 138,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,988 : 251,145.27 = 100,319.16 : x
  2. Step 2: Convert to fraction form
    181,988/251,145.27 = 100,319.16/x
  3. Step 3: Cross multiply
    181,988x = 251,145.27 × 100,319.16
  4. Step 4: Simplify right side
    181,988x = 25,194,682,524.37
  5. Step 5: Solve for x
    x = 25,194,682,524.37/181,988
  6. Step 6: Final answer
    x = 138,441.45

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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.