Home / 203,361.12-280,643.94-111,485.52

Finding the Fourth Proportional to 203,361.12, 280,643.94 and 111,485.52

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Solution

The fourth proportional to 203,361.12, 280,643.94 and 111,485.52 is: 153,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,361.12 : 280,643.94 = 111,485.52 : x
  2. Step 2: Convert to fraction form
    203,361.12/280,643.94 = 111,485.52/x
  3. Step 3: Cross multiply
    203,361.12x = 280,643.94 × 111,485.52
  4. Step 4: Simplify right side
    203,361.12x = 31,287,735,585.75
  5. Step 5: Solve for x
    x = 31,287,735,585.75/203,361.12
  6. Step 6: Final answer
    x = 153,853.08

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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.