Finding the Fourth Proportional to 106,979.27, 147,497.39 and 68,671.23
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Solution
The fourth proportional to 106,979.27, 147,497.39 and 68,671.23 is: 94,680.28
Step by Step Solution
- Step 1: Write the proportion equation
106,979.27 : 147,497.39 = 68,671.23 : x - Step 2: Convert to fraction form
106,979.27/147,497.39 = 68,671.23/x - Step 3: Cross multiply
106,979.27x = 147,497.39 × 68,671.23 - Step 4: Simplify right side
106,979.27x = 10,128,826,554.14 - Step 5: Solve for x
x = 10,128,826,554.14/106,979.27 - Step 6: Final answer
x = 94,680.28
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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.