Finding the Fourth Proportional to 122,311.95, 168,712.80 and 88,370.31
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Solution
The fourth proportional to 122,311.95, 168,712.80 and 88,370.31 is: 121,894.90
Step by Step Solution
- Step 1: Write the proportion equation
122,311.95 : 168,712.80 = 88,370.31 : x - Step 2: Convert to fraction form
122,311.95/168,712.80 = 88,370.31/x - Step 3: Cross multiply
122,311.95x = 168,712.80 × 88,370.31 - Step 4: Simplify right side
122,311.95x = 14,909,202,436.97 - Step 5: Solve for x
x = 14,909,202,436.97/122,311.95 - Step 6: Final answer
x = 121,894.90
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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.