Home / 100,992.02-151,531.79-54,190.22

Finding the Fourth Proportional to 100,992.02, 151,531.79 and 54,190.22

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Solution

The fourth proportional to 100,992.02, 151,531.79 and 54,190.22 is: 81,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,992.02 : 151,531.79 = 54,190.22 : x
  2. Step 2: Convert to fraction form
    100,992.02/151,531.79 = 54,190.22/x
  3. Step 3: Cross multiply
    100,992.02x = 151,531.79 × 54,190.22
  4. Step 4: Simplify right side
    100,992.02x = 8,211,540,008.48
  5. Step 5: Solve for x
    x = 8,211,540,008.48/100,992.02
  6. Step 6: Final answer
    x = 81,308.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.