Finding the Fourth Proportional to 157,052.12, 216,745.97 and 92,521.95
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Solution
The fourth proportional to 157,052.12, 216,745.97 and 92,521.95 is: 127,688.56
Step by Step Solution
- Step 1: Write the proportion equation
157,052.12 : 216,745.97 = 92,521.95 : x - Step 2: Convert to fraction form
157,052.12/216,745.97 = 92,521.95/x - Step 3: Cross multiply
157,052.12x = 216,745.97 × 92,521.95 - Step 4: Simplify right side
157,052.12x = 20,053,759,799.04 - Step 5: Solve for x
x = 20,053,759,799.04/157,052.12 - Step 6: Final answer
x = 127,688.56
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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.