Finding the Fourth Proportional to 131,684.13, 181,726.44 and 74,334.91
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Solution
The fourth proportional to 131,684.13, 181,726.44 and 74,334.91 is: 102,583.50
Step by Step Solution
- Step 1: Write the proportion equation
131,684.13 : 181,726.44 = 74,334.91 : x - Step 2: Convert to fraction form
131,684.13/181,726.44 = 74,334.91/x - Step 3: Cross multiply
131,684.13x = 181,726.44 × 74,334.91 - Step 4: Simplify right side
131,684.13x = 13,508,618,562.02 - Step 5: Solve for x
x = 13,508,618,562.02/131,684.13 - Step 6: Final answer
x = 102,583.50
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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.