Finding the Fourth Proportional to 131,864.58, 181,950.57 and 74,477.70
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Solution
The fourth proportional to 131,864.58, 181,950.57 and 74,477.70 is: 102,766.49
Step by Step Solution
- Step 1: Write the proportion equation
131,864.58 : 181,950.57 = 74,477.70 : x - Step 2: Convert to fraction form
131,864.58/181,950.57 = 74,477.70/x - Step 3: Cross multiply
131,864.58x = 181,950.57 × 74,477.70 - Step 4: Simplify right side
131,864.58x = 13,551,259,967.29 - Step 5: Solve for x
x = 13,551,259,967.29/131,864.58 - Step 6: Final answer
x = 102,766.49
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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.