Home / 78,181.06-117,270.47-19,016.84

Finding the Fourth Proportional to 78,181.06, 117,270.47 and 19,016.84

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Solution

The fourth proportional to 78,181.06, 117,270.47 and 19,016.84 is: 28,524.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181.06 : 117,270.47 = 19,016.84 : x
  2. Step 2: Convert to fraction form
    78,181.06/117,270.47 = 19,016.84/x
  3. Step 3: Cross multiply
    78,181.06x = 117,270.47 × 19,016.84
  4. Step 4: Simplify right side
    78,181.06x = 2,230,113,178.36
  5. Step 5: Solve for x
    x = 2,230,113,178.36/78,181.06
  6. Step 6: Final answer
    x = 28,524.98

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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.