Finding the Fourth Proportional to 158,525.88, 218,574.42 and 136,976.68
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Solution
The fourth proportional to 158,525.88, 218,574.42 and 136,976.68 is: 188,862.53
Step by Step Solution
- Step 1: Write the proportion equation
158,525.88 : 218,574.42 = 136,976.68 : x - Step 2: Convert to fraction form
158,525.88/218,574.42 = 136,976.68/x - Step 3: Cross multiply
158,525.88x = 218,574.42 × 136,976.68 - Step 4: Simplify right side
158,525.88x = 29,939,598,384.53 - Step 5: Solve for x
x = 29,939,598,384.53/158,525.88 - Step 6: Final answer
x = 188,862.53
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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.