Finding the Fourth Proportional to 132,838.80, 183,315.16 and 72,409.96
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Solution
The fourth proportional to 132,838.80, 183,315.16 and 72,409.96 is: 99,924.45
Step by Step Solution
- Step 1: Write the proportion equation
132,838.80 : 183,315.16 = 72,409.96 : x - Step 2: Convert to fraction form
132,838.80/183,315.16 = 72,409.96/x - Step 3: Cross multiply
132,838.80x = 183,315.16 × 72,409.96 - Step 4: Simplify right side
132,838.80x = 13,273,843,402.99 - Step 5: Solve for x
x = 13,273,843,402.99/132,838.80 - Step 6: Final answer
x = 99,924.45
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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.