Finding the Fourth Proportional to 131,578.41, 181,565.37 and 74,226.77
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Solution
The fourth proportional to 131,578.41, 181,565.37 and 74,226.77 is: 102,425.69
Step by Step Solution
- Step 1: Write the proportion equation
131,578.41 : 181,565.37 = 74,226.77 : x - Step 2: Convert to fraction form
131,578.41/181,565.37 = 74,226.77/x - Step 3: Cross multiply
131,578.41x = 181,565.37 × 74,226.77 - Step 4: Simplify right side
131,578.41x = 13,477,010,051.13 - Step 5: Solve for x
x = 13,477,010,051.13/131,578.41 - Step 6: Final answer
x = 102,425.69
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1.5x scale
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.