Home / 137,982.73-190,491.56-83,544.20

Finding the Fourth Proportional to 137,982.73, 190,491.56 and 83,544.20

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Solution

The fourth proportional to 137,982.73, 190,491.56 and 83,544.20 is: 115,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,982.73 : 190,491.56 = 83,544.20 : x
  2. Step 2: Convert to fraction form
    137,982.73/190,491.56 = 83,544.20/x
  3. Step 3: Cross multiply
    137,982.73x = 190,491.56 × 83,544.20
  4. Step 4: Simplify right side
    137,982.73x = 15,914,464,986.95
  5. Step 5: Solve for x
    x = 15,914,464,986.95/137,982.73
  6. Step 6: Final answer
    x = 115,336.64

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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.