Home / 135,022.60-202,145.10-121,025.80

Finding the Fourth Proportional to 135,022.60, 202,145.10 and 121,025.80

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Solution

The fourth proportional to 135,022.60, 202,145.10 and 121,025.80 is: 181,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,022.60 : 202,145.10 = 121,025.80 : x
  2. Step 2: Convert to fraction form
    135,022.60/202,145.10 = 121,025.80/x
  3. Step 3: Cross multiply
    135,022.60x = 202,145.10 × 121,025.80
  4. Step 4: Simplify right side
    135,022.60x = 24,464,772,443.58
  5. Step 5: Solve for x
    x = 24,464,772,443.58/135,022.60
  6. Step 6: Final answer
    x = 181,190.20

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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.