Home / 145,187.37-200,361.06-80,662.46

Finding the Fourth Proportional to 145,187.37, 200,361.06 and 80,662.46

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Solution

The fourth proportional to 145,187.37, 200,361.06 and 80,662.46 is: 111,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,187.37 : 200,361.06 = 80,662.46 : x
  2. Step 2: Convert to fraction form
    145,187.37/200,361.06 = 80,662.46/x
  3. Step 3: Cross multiply
    145,187.37x = 200,361.06 × 80,662.46
  4. Step 4: Simplify right side
    145,187.37x = 16,161,614,986.00
  5. Step 5: Solve for x
    x = 16,161,614,986.00/145,187.37
  6. Step 6: Final answer
    x = 111,315.57

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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.