Home / 122,938.08-169,662.96-69,228

Finding the Fourth Proportional to 122,938.08, 169,662.96 and 69,228

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Solution

The fourth proportional to 122,938.08, 169,662.96 and 69,228 is: 95,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,938.08 : 169,662.96 = 69,228 : x
  2. Step 2: Convert to fraction form
    122,938.08/169,662.96 = 69,228/x
  3. Step 3: Cross multiply
    122,938.08x = 169,662.96 × 69,228
  4. Step 4: Simplify right side
    122,938.08x = 11,745,427,394.88
  5. Step 5: Solve for x
    x = 11,745,427,394.88/122,938.08
  6. Step 6: Final answer
    x = 95,539.38

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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.