Home / 134,731.60-202,078.20-45,989.20

Finding the Fourth Proportional to 134,731.60, 202,078.20 and 45,989.20

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Solution

The fourth proportional to 134,731.60, 202,078.20 and 45,989.20 is: 68,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,731.60 : 202,078.20 = 45,989.20 : x
  2. Step 2: Convert to fraction form
    134,731.60/202,078.20 = 45,989.20/x
  3. Step 3: Cross multiply
    134,731.60x = 202,078.20 × 45,989.20
  4. Step 4: Simplify right side
    134,731.60x = 9,293,414,755.44
  5. Step 5: Solve for x
    x = 9,293,414,755.44/134,731.60
  6. Step 6: Final answer
    x = 68,977.25

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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.