Finding the Fourth Proportional to 168,818.97, 253,228.46 and 68,979.08
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Solution
The fourth proportional to 168,818.97, 253,228.46 and 68,979.08 is: 103,468.61
Step by Step Solution
- Step 1: Write the proportion equation
168,818.97 : 253,228.46 = 68,979.08 : x - Step 2: Convert to fraction form
168,818.97/253,228.46 = 68,979.08/x - Step 3: Cross multiply
168,818.97x = 253,228.46 × 68,979.08 - Step 4: Simplify right side
168,818.97x = 17,467,465,106.92 - Step 5: Solve for x
x = 17,467,465,106.92/168,818.97 - Step 6: Final answer
x = 103,468.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.