Home / 203,020.93-280,104.48-118,121.59

Finding the Fourth Proportional to 203,020.93, 280,104.48 and 118,121.59

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Solution

The fourth proportional to 203,020.93, 280,104.48 and 118,121.59 is: 162,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,020.93 : 280,104.48 = 118,121.59 : x
  2. Step 2: Convert to fraction form
    203,020.93/280,104.48 = 118,121.59/x
  3. Step 3: Cross multiply
    203,020.93x = 280,104.48 × 118,121.59
  4. Step 4: Simplify right side
    203,020.93x = 33,086,385,953.12
  5. Step 5: Solve for x
    x = 33,086,385,953.12/203,020.93
  6. Step 6: Final answer
    x = 162,970.32

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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.