Finding the Fourth Proportional to 158,350.91, 218,527.79 and 90,366.53
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Solution
The fourth proportional to 158,350.91, 218,527.79 and 90,366.53 is: 124,707.82
Step by Step Solution
- Step 1: Write the proportion equation
158,350.91 : 218,527.79 = 90,366.53 : x - Step 2: Convert to fraction form
158,350.91/218,527.79 = 90,366.53/x - Step 3: Cross multiply
158,350.91x = 218,527.79 × 90,366.53 - Step 4: Simplify right side
158,350.91x = 19,747,596,546.40 - Step 5: Solve for x
x = 19,747,596,546.40/158,350.91 - Step 6: Final answer
x = 124,707.82
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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.