Finding the Fourth Proportional to 122,170.24, 168,595.52 and 79,703.68
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Solution
The fourth proportional to 122,170.24, 168,595.52 and 79,703.68 is: 109,991.46
Step by Step Solution
- Step 1: Write the proportion equation
122,170.24 : 168,595.52 = 79,703.68 : x - Step 2: Convert to fraction form
122,170.24/168,595.52 = 79,703.68/x - Step 3: Cross multiply
122,170.24x = 168,595.52 × 79,703.68 - Step 4: Simplify right side
122,170.24x = 13,437,683,375.51 - Step 5: Solve for x
x = 13,437,683,375.51/122,170.24 - Step 6: Final answer
x = 109,991.46
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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.