Finding the Fourth Proportional to 158,233.24, 218,362.20 and 86,617.84
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Solution
The fourth proportional to 158,233.24, 218,362.20 and 86,617.84 is: 119,532.80
Step by Step Solution
- Step 1: Write the proportion equation
158,233.24 : 218,362.20 = 86,617.84 : x - Step 2: Convert to fraction form
158,233.24/218,362.20 = 86,617.84/x - Step 3: Cross multiply
158,233.24x = 218,362.20 × 86,617.84 - Step 4: Simplify right side
158,233.24x = 18,914,062,101.65 - Step 5: Solve for x
x = 18,914,062,101.65/158,233.24 - Step 6: Final answer
x = 119,532.80
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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.