Finding the Fourth Proportional to 122,124.25, 168,528.45 and 68,408.92
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Solution
The fourth proportional to 122,124.25, 168,528.45 and 68,408.92 is: 94,402.62
Step by Step Solution
- Step 1: Write the proportion equation
122,124.25 : 168,528.45 = 68,408.92 : x - Step 2: Convert to fraction form
122,124.25/168,528.45 = 68,408.92/x - Step 3: Cross multiply
122,124.25x = 168,528.45 × 68,408.92 - Step 4: Simplify right side
122,124.25x = 11,528,849,253.77 - Step 5: Solve for x
x = 11,528,849,253.77/122,124.25 - Step 6: Final answer
x = 94,402.62
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1.5x scale
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.