Finding the Fourth Proportional to 132,663.51, 183,031.16 and 78,917.99
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Solution
The fourth proportional to 132,663.51, 183,031.16 and 78,917.99 is: 108,880.35
Step by Step Solution
- Step 1: Write the proportion equation
132,663.51 : 183,031.16 = 78,917.99 : x - Step 2: Convert to fraction form
132,663.51/183,031.16 = 78,917.99/x - Step 3: Cross multiply
132,663.51x = 183,031.16 × 78,917.99 - Step 4: Simplify right side
132,663.51x = 14,444,449,944.82 - Step 5: Solve for x
x = 14,444,449,944.82/132,663.51 - Step 6: Final answer
x = 108,880.35
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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.