Finding the Fourth Proportional to 163,076.99, 225,070.85 and 99,451.70
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Solution
The fourth proportional to 163,076.99, 225,070.85 and 99,451.70 is: 137,258.34
Step by Step Solution
- Step 1: Write the proportion equation
163,076.99 : 225,070.85 = 99,451.70 : x - Step 2: Convert to fraction form
163,076.99/225,070.85 = 99,451.70/x - Step 3: Cross multiply
163,076.99x = 225,070.85 × 99,451.70 - Step 4: Simplify right side
163,076.99x = 22,383,677,030.33 - Step 5: Solve for x
x = 22,383,677,030.33/163,076.99 - Step 6: Final answer
x = 137,258.34
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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.