Finding the Fourth Proportional to 122,179.19, 168,378.95 and 95,279.09
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Solution
The fourth proportional to 122,179.19, 168,378.95 and 95,279.09 is: 131,307.08
Step by Step Solution
- Step 1: Write the proportion equation
122,179.19 : 168,378.95 = 95,279.09 : x - Step 2: Convert to fraction form
122,179.19/168,378.95 = 95,279.09/x - Step 3: Cross multiply
122,179.19x = 168,378.95 × 95,279.09 - Step 4: Simplify right side
122,179.19x = 16,042,992,527.46 - Step 5: Solve for x
x = 16,042,992,527.46/122,179.19 - Step 6: Final answer
x = 131,307.08
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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.