Finding the Fourth Proportional to 158,083.09, 218,159.88 and 86,463.11
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Solution
The fourth proportional to 158,083.09, 218,159.88 and 86,463.11 is: 119,321.95
Step by Step Solution
- Step 1: Write the proportion equation
158,083.09 : 218,159.88 = 86,463.11 : x - Step 2: Convert to fraction form
158,083.09/218,159.88 = 86,463.11/x - Step 3: Cross multiply
158,083.09x = 218,159.88 × 86,463.11 - Step 4: Simplify right side
158,083.09x = 18,862,781,923.19 - Step 5: Solve for x
x = 18,862,781,923.19/158,083.09 - Step 6: Final answer
x = 119,321.95
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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.