Home / 123,054.60-169,811.82-69,338.64

Finding the Fourth Proportional to 123,054.60, 169,811.82 and 69,338.64

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Solution

The fourth proportional to 123,054.60, 169,811.82 and 69,338.64 is: 95,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,054.60 : 169,811.82 = 69,338.64 : x
  2. Step 2: Convert to fraction form
    123,054.60/169,811.82 = 69,338.64/x
  3. Step 3: Cross multiply
    123,054.60x = 169,811.82 × 69,338.64
  4. Step 4: Simplify right side
    123,054.60x = 11,774,520,654.72
  5. Step 5: Solve for x
    x = 11,774,520,654.72/123,054.60
  6. Step 6: Final answer
    x = 95,685.34

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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.