Finding the Fourth Proportional to 132,730.79, 183,201.57 and 81,787.19
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Solution
The fourth proportional to 132,730.79, 183,201.57 and 81,787.19 is: 112,886.70
Step by Step Solution
- Step 1: Write the proportion equation
132,730.79 : 183,201.57 = 81,787.19 : x - Step 2: Convert to fraction form
132,730.79/183,201.57 = 81,787.19/x - Step 3: Cross multiply
132,730.79x = 183,201.57 × 81,787.19 - Step 4: Simplify right side
132,730.79x = 14,983,540,697.88 - Step 5: Solve for x
x = 14,983,540,697.88/132,730.79 - Step 6: Final answer
x = 112,886.70
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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.