Home / 231,968.31-320,138.67-130,010.95

Finding the Fourth Proportional to 231,968.31, 320,138.67 and 130,010.95

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Solution

The fourth proportional to 231,968.31, 320,138.67 and 130,010.95 is: 179,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,968.31 : 320,138.67 = 130,010.95 : x
  2. Step 2: Convert to fraction form
    231,968.31/320,138.67 = 130,010.95/x
  3. Step 3: Cross multiply
    231,968.31x = 320,138.67 × 130,010.95
  4. Step 4: Simplify right side
    231,968.31x = 41,621,532,618.44
  5. Step 5: Solve for x
    x = 41,621,532,618.44/231,968.31
  6. Step 6: Final answer
    x = 179,427.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.