Finding the Fourth Proportional to 122,528.92, 169,070.07 and 76,583.14
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Solution
The fourth proportional to 122,528.92, 169,070.07 and 76,583.14 is: 105,672.34
Step by Step Solution
- Step 1: Write the proportion equation
122,528.92 : 169,070.07 = 76,583.14 : x - Step 2: Convert to fraction form
122,528.92/169,070.07 = 76,583.14/x - Step 3: Cross multiply
122,528.92x = 169,070.07 × 76,583.14 - Step 4: Simplify right side
122,528.92x = 12,947,917,339.14 - Step 5: Solve for x
x = 12,947,917,339.14/122,528.92 - Step 6: Final answer
x = 105,672.34
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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.