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Finding the Fourth Proportional to 128,000.82, 192,028.53 and 49,114.38

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Solution

The fourth proportional to 128,000.82, 192,028.53 and 49,114.38 is: 73,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,000.82 : 192,028.53 = 49,114.38 : x
  2. Step 2: Convert to fraction form
    128,000.82/192,028.53 = 49,114.38/x
  3. Step 3: Cross multiply
    128,000.82x = 192,028.53 × 49,114.38
  4. Step 4: Simplify right side
    128,000.82x = 9,431,362,193.26
  5. Step 5: Solve for x
    x = 9,431,362,193.26/128,000.82
  6. Step 6: Final answer
    x = 73,682.05

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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.