Home / 128,998.47-193,464.90-50,069.64

Finding the Fourth Proportional to 128,998.47, 193,464.90 and 50,069.64

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Solution

The fourth proportional to 128,998.47, 193,464.90 and 50,069.64 is: 75,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998.47 : 193,464.90 = 50,069.64 : x
  2. Step 2: Convert to fraction form
    128,998.47/193,464.90 = 50,069.64/x
  3. Step 3: Cross multiply
    128,998.47x = 193,464.90 × 50,069.64
  4. Step 4: Simplify right side
    128,998.47x = 9,686,717,895.64
  5. Step 5: Solve for x
    x = 9,686,717,895.64/128,998.47
  6. Step 6: Final answer
    x = 75,091.73

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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.