Finding the Fourth Proportional to 163,719.05, 245,638.37 and 68,972.97
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Solution
The fourth proportional to 163,719.05, 245,638.37 and 68,972.97 is: 103,484.65
Step by Step Solution
- Step 1: Write the proportion equation
163,719.05 : 245,638.37 = 68,972.97 : x - Step 2: Convert to fraction form
163,719.05/245,638.37 = 68,972.97/x - Step 3: Cross multiply
163,719.05x = 245,638.37 × 68,972.97 - Step 4: Simplify right side
163,719.05x = 16,942,407,636.72 - Step 5: Solve for x
x = 16,942,407,636.72/163,719.05 - Step 6: Final answer
x = 103,484.65
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1.5x scale
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.