Home / 203,486.21-280,828.73-118,601.45

Finding the Fourth Proportional to 203,486.21, 280,828.73 and 118,601.45

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Solution

The fourth proportional to 203,486.21, 280,828.73 and 118,601.45 is: 163,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,486.21 : 280,828.73 = 118,601.45 : x
  2. Step 2: Convert to fraction form
    203,486.21/280,828.73 = 118,601.45/x
  3. Step 3: Cross multiply
    203,486.21x = 280,828.73 × 118,601.45
  4. Step 4: Simplify right side
    203,486.21x = 33,306,693,986.65
  5. Step 5: Solve for x
    x = 33,306,693,986.65/203,486.21
  6. Step 6: Final answer
    x = 163,680.35

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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.