Finding the Fourth Proportional to 157,190.40, 216,989.82 and 93,534.12
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Solution
The fourth proportional to 157,190.40, 216,989.82 and 93,534.12 is: 129,116.99
Step by Step Solution
- Step 1: Write the proportion equation
157,190.40 : 216,989.82 = 93,534.12 : x - Step 2: Convert to fraction form
157,190.40/216,989.82 = 93,534.12/x - Step 3: Cross multiply
157,190.40x = 216,989.82 × 93,534.12 - Step 4: Simplify right side
157,190.40x = 20,295,951,862.66 - Step 5: Solve for x
x = 20,295,951,862.66/157,190.40 - Step 6: Final answer
x = 129,116.99
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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.