Home / 132,954.20-199,431.30-121,290.20

Finding the Fourth Proportional to 132,954.20, 199,431.30 and 121,290.20

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Solution

The fourth proportional to 132,954.20, 199,431.30 and 121,290.20 is: 181,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,954.20 : 199,431.30 = 121,290.20 : x
  2. Step 2: Convert to fraction form
    132,954.20/199,431.30 = 121,290.20/x
  3. Step 3: Cross multiply
    132,954.20x = 199,431.30 × 121,290.20
  4. Step 4: Simplify right side
    132,954.20x = 24,189,062,263.26
  5. Step 5: Solve for x
    x = 24,189,062,263.26/132,954.20
  6. Step 6: Final answer
    x = 181,935.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.