Home / 133,015.24-199,090.65-72,892.21

Finding the Fourth Proportional to 133,015.24, 199,090.65 and 72,892.21

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Solution

The fourth proportional to 133,015.24, 199,090.65 and 72,892.21 is: 109,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,015.24 : 199,090.65 = 72,892.21 : x
  2. Step 2: Convert to fraction form
    133,015.24/199,090.65 = 72,892.21/x
  3. Step 3: Cross multiply
    133,015.24x = 199,090.65 × 72,892.21
  4. Step 4: Simplify right side
    133,015.24x = 14,512,157,991.05
  5. Step 5: Solve for x
    x = 14,512,157,991.05/133,015.24
  6. Step 6: Final answer
    x = 109,101.47

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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.