Home / 123,431.77-184,998.75-56,780.47

Finding the Fourth Proportional to 123,431.77, 184,998.75 and 56,780.47

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Solution

The fourth proportional to 123,431.77, 184,998.75 and 56,780.47 is: 85,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,431.77 : 184,998.75 = 56,780.47 : x
  2. Step 2: Convert to fraction form
    123,431.77/184,998.75 = 56,780.47/x
  3. Step 3: Cross multiply
    123,431.77x = 184,998.75 × 56,780.47
  4. Step 4: Simplify right side
    123,431.77x = 10,504,315,974.41
  5. Step 5: Solve for x
    x = 10,504,315,974.41/123,431.77
  6. Step 6: Final answer
    x = 85,102.21

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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.