Home / 203,686.12-281,023.86-118,743.04

Finding the Fourth Proportional to 203,686.12, 281,023.86 and 118,743.04

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Solution

The fourth proportional to 203,686.12, 281,023.86 and 118,743.04 is: 163,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,686.12 : 281,023.86 = 118,743.04 : x
  2. Step 2: Convert to fraction form
    203,686.12/281,023.86 = 118,743.04/x
  3. Step 3: Cross multiply
    203,686.12x = 281,023.86 × 118,743.04
  4. Step 4: Simplify right side
    203,686.12x = 33,369,627,448.93
  5. Step 5: Solve for x
    x = 33,369,627,448.93/203,686.12
  6. Step 6: Final answer
    x = 163,828.68

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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.