Finding the Fourth Proportional to 122,743.52, 169,387.06 and 69,028.05
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Solution
The fourth proportional to 122,743.52, 169,387.06 and 69,028.05 is: 95,259.28
Step by Step Solution
- Step 1: Write the proportion equation
122,743.52 : 169,387.06 = 69,028.05 : x - Step 2: Convert to fraction form
122,743.52/169,387.06 = 69,028.05/x - Step 3: Cross multiply
122,743.52x = 169,387.06 × 69,028.05 - Step 4: Simplify right side
122,743.52x = 11,692,458,447.03 - Step 5: Solve for x
x = 11,692,458,447.03/122,743.52 - Step 6: Final answer
x = 95,259.28
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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.