Home / 171,828.37-257,638.92-77,041.36

Finding the Fourth Proportional to 171,828.37, 257,638.92 and 77,041.36

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Solution

The fourth proportional to 171,828.37, 257,638.92 and 77,041.36 is: 115,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,828.37 : 257,638.92 = 77,041.36 : x
  2. Step 2: Convert to fraction form
    171,828.37/257,638.92 = 77,041.36/x
  3. Step 3: Cross multiply
    171,828.37x = 257,638.92 × 77,041.36
  4. Step 4: Simplify right side
    171,828.37x = 19,848,852,785.73
  5. Step 5: Solve for x
    x = 19,848,852,785.73/171,828.37
  6. Step 6: Final answer
    x = 115,515.57

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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.