Finding the Fourth Proportional to 121,994.48, 168,352.36 and 68,279.49
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Solution
The fourth proportional to 121,994.48, 168,352.36 and 68,279.49 is: 94,225.68
Step by Step Solution
- Step 1: Write the proportion equation
121,994.48 : 168,352.36 = 68,279.49 : x - Step 2: Convert to fraction form
121,994.48/168,352.36 = 68,279.49/x - Step 3: Cross multiply
121,994.48x = 168,352.36 × 68,279.49 - Step 4: Simplify right side
121,994.48x = 11,495,013,281.10 - Step 5: Solve for x
x = 11,495,013,281.10/121,994.48 - Step 6: Final answer
x = 94,225.68
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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.