Finding the Fourth Proportional to 122,462.58, 168,998.26 and 68,747.70
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Solution
The fourth proportional to 122,462.58, 168,998.26 and 68,747.70 is: 94,871.77
Step by Step Solution
- Step 1: Write the proportion equation
122,462.58 : 168,998.26 = 68,747.70 : x - Step 2: Convert to fraction form
122,462.58/168,998.26 = 68,747.70/x - Step 3: Cross multiply
122,462.58x = 168,998.26 × 68,747.70 - Step 4: Simplify right side
122,462.58x = 11,618,241,679.00 - Step 5: Solve for x
x = 11,618,241,679.00/122,462.58 - Step 6: Final answer
x = 94,871.77
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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.