Home / 122,211.96-168,399.64-98,242.44

Finding the Fourth Proportional to 122,211.96, 168,399.64 and 98,242.44

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Solution

The fourth proportional to 122,211.96, 168,399.64 and 98,242.44 is: 135,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,211.96 : 168,399.64 = 98,242.44 : x
  2. Step 2: Convert to fraction form
    122,211.96/168,399.64 = 98,242.44/x
  3. Step 3: Cross multiply
    122,211.96x = 168,399.64 × 98,242.44
  4. Step 4: Simplify right side
    122,211.96x = 16,543,991,528.72
  5. Step 5: Solve for x
    x = 16,543,991,528.72/122,211.96
  6. Step 6: Final answer
    x = 135,371.30

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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.