Home / 135,735.12-203,690.16-52,629.12

Finding the Fourth Proportional to 135,735.12, 203,690.16 and 52,629.12

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Solution

The fourth proportional to 135,735.12, 203,690.16 and 52,629.12 is: 78,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,735.12 : 203,690.16 = 52,629.12 : x
  2. Step 2: Convert to fraction form
    135,735.12/203,690.16 = 52,629.12/x
  3. Step 3: Cross multiply
    135,735.12x = 203,690.16 × 52,629.12
  4. Step 4: Simplify right side
    135,735.12x = 10,720,033,873.46
  5. Step 5: Solve for x
    x = 10,720,033,873.46/135,735.12
  6. Step 6: Final answer
    x = 78,977.60

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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.