Home / 135,128.42-202,696.76-46,380.64

Finding the Fourth Proportional to 135,128.42, 202,696.76 and 46,380.64

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Solution

The fourth proportional to 135,128.42, 202,696.76 and 46,380.64 is: 69,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,128.42 : 202,696.76 = 46,380.64 : x
  2. Step 2: Convert to fraction form
    135,128.42/202,696.76 = 46,380.64/x
  3. Step 3: Cross multiply
    135,128.42x = 202,696.76 × 46,380.64
  4. Step 4: Simplify right side
    135,128.42x = 9,401,205,454.73
  5. Step 5: Solve for x
    x = 9,401,205,454.73/135,128.42
  6. Step 6: Final answer
    x = 69,572.38

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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.