Home / 171,743.23-257,610.21-76,947.67

Finding the Fourth Proportional to 171,743.23, 257,610.21 and 76,947.67

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Solution

The fourth proportional to 171,743.23, 257,610.21 and 76,947.67 is: 115,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,743.23 : 257,610.21 = 76,947.67 : x
  2. Step 2: Convert to fraction form
    171,743.23/257,610.21 = 76,947.67/x
  3. Step 3: Cross multiply
    171,743.23x = 257,610.21 × 76,947.67
  4. Step 4: Simplify right side
    171,743.23x = 19,822,505,427.71
  5. Step 5: Solve for x
    x = 19,822,505,427.71/171,743.23
  6. Step 6: Final answer
    x = 115,419.43

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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.