Home / 203,557.33-280,942.74-112,942.45

Finding the Fourth Proportional to 203,557.33, 280,942.74 and 112,942.45

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Solution

The fourth proportional to 203,557.33, 280,942.74 and 112,942.45 is: 155,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,557.33 : 280,942.74 = 112,942.45 : x
  2. Step 2: Convert to fraction form
    203,557.33/280,942.74 = 112,942.45/x
  3. Step 3: Cross multiply
    203,557.33x = 280,942.74 × 112,942.45
  4. Step 4: Simplify right side
    203,557.33x = 31,730,361,365.31
  5. Step 5: Solve for x
    x = 31,730,361,365.31/203,557.33
  6. Step 6: Final answer
    x = 155,879.24

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1.5x scale

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.