Home / 181,221.20-250,076.77-100,653.64

Finding the Fourth Proportional to 181,221.20, 250,076.77 and 100,653.64

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Solution

The fourth proportional to 181,221.20, 250,076.77 and 100,653.64 is: 138,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,221.20 : 250,076.77 = 100,653.64 : x
  2. Step 2: Convert to fraction form
    181,221.20/250,076.77 = 100,653.64/x
  3. Step 3: Cross multiply
    181,221.20x = 250,076.77 × 100,653.64
  4. Step 4: Simplify right side
    181,221.20x = 25,171,136,303.12
  5. Step 5: Solve for x
    x = 25,171,136,303.12/181,221.20
  6. Step 6: Final answer
    x = 138,897.31

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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.