Home / 123,858.10-170,921.37-67,268.26

Finding the Fourth Proportional to 123,858.10, 170,921.37 and 67,268.26

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Solution

The fourth proportional to 123,858.10, 170,921.37 and 67,268.26 is: 92,828.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,858.10 : 170,921.37 = 67,268.26 : x
  2. Step 2: Convert to fraction form
    123,858.10/170,921.37 = 67,268.26/x
  3. Step 3: Cross multiply
    123,858.10x = 170,921.37 × 67,268.26
  4. Step 4: Simplify right side
    123,858.10x = 11,497,583,156.72
  5. Step 5: Solve for x
    x = 11,497,583,156.72/123,858.10
  6. Step 6: Final answer
    x = 92,828.67

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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.