Home / 199,361.91-298,955.07-72,969.30

Finding the Fourth Proportional to 199,361.91, 298,955.07 and 72,969.30

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Solution

The fourth proportional to 199,361.91, 298,955.07 and 72,969.30 is: 109,421.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,361.91 : 298,955.07 = 72,969.30 : x
  2. Step 2: Convert to fraction form
    199,361.91/298,955.07 = 72,969.30/x
  3. Step 3: Cross multiply
    199,361.91x = 298,955.07 × 72,969.30
  4. Step 4: Simplify right side
    199,361.91x = 21,814,542,189.35
  5. Step 5: Solve for x
    x = 21,814,542,189.35/199,361.91
  6. Step 6: Final answer
    x = 109,421.82

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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.