Home / 121,661.20-166,673.06-117,112.71

Finding the Fourth Proportional to 121,661.20, 166,673.06 and 117,112.71

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Solution

The fourth proportional to 121,661.20, 166,673.06 and 117,112.71 is: 160,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,661.20 : 166,673.06 = 117,112.71 : x
  2. Step 2: Convert to fraction form
    121,661.20/166,673.06 = 117,112.71/x
  3. Step 3: Cross multiply
    121,661.20x = 166,673.06 × 117,112.71
  4. Step 4: Simplify right side
    121,661.20x = 19,519,533,155.03
  5. Step 5: Solve for x
    x = 19,519,533,155.03/121,661.20
  6. Step 6: Final answer
    x = 160,441.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.