Home / 128,998.02-193,421.82-50,019.96

Finding the Fourth Proportional to 128,998.02, 193,421.82 and 50,019.96

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Solution

The fourth proportional to 128,998.02, 193,421.82 and 50,019.96 is: 75,000.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998.02 : 193,421.82 = 50,019.96 : x
  2. Step 2: Convert to fraction form
    128,998.02/193,421.82 = 50,019.96/x
  3. Step 3: Cross multiply
    128,998.02x = 193,421.82 × 50,019.96
  4. Step 4: Simplify right side
    128,998.02x = 9,674,951,699.53
  5. Step 5: Solve for x
    x = 9,674,951,699.53/128,998.02
  6. Step 6: Final answer
    x = 75,000.78

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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.