Home / 171,619.98-257,139.34-103,947.54

Finding the Fourth Proportional to 171,619.98, 257,139.34 and 103,947.54

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Solution

The fourth proportional to 171,619.98, 257,139.34 and 103,947.54 is: 155,745.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,619.98 : 257,139.34 = 103,947.54 : x
  2. Step 2: Convert to fraction form
    171,619.98/257,139.34 = 103,947.54/x
  3. Step 3: Cross multiply
    171,619.98x = 257,139.34 × 103,947.54
  4. Step 4: Simplify right side
    171,619.98x = 26,729,001,478.02
  5. Step 5: Solve for x
    x = 26,729,001,478.02/171,619.98
  6. Step 6: Final answer
    x = 155,745.27

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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.