Home / 205,745.90-308,587.66-55,997.86

Finding the Fourth Proportional to 205,745.90, 308,587.66 and 55,997.86

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Solution

The fourth proportional to 205,745.90, 308,587.66 and 55,997.86 is: 83,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,745.90 : 308,587.66 = 55,997.86 : x
  2. Step 2: Convert to fraction form
    205,745.90/308,587.66 = 55,997.86/x
  3. Step 3: Cross multiply
    205,745.90x = 308,587.66 × 55,997.86
  4. Step 4: Simplify right side
    205,745.90x = 17,280,248,564.53
  5. Step 5: Solve for x
    x = 17,280,248,564.53/205,745.90
  6. Step 6: Final answer
    x = 83,988.30

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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.