Home / 209,629.74-289,274.44-118,987.56

Finding the Fourth Proportional to 209,629.74, 289,274.44 and 118,987.56

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Solution

The fourth proportional to 209,629.74, 289,274.44 and 118,987.56 is: 164,194.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,629.74 : 289,274.44 = 118,987.56 : x
  2. Step 2: Convert to fraction form
    209,629.74/289,274.44 = 118,987.56/x
  3. Step 3: Cross multiply
    209,629.74x = 289,274.44 × 118,987.56
  4. Step 4: Simplify right side
    209,629.74x = 34,420,059,785.97
  5. Step 5: Solve for x
    x = 34,420,059,785.97/209,629.74
  6. Step 6: Final answer
    x = 164,194.55

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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.