Finding the Fourth Proportional to 114,457.29, 170,989.72 and 74,148.14
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Solution
The fourth proportional to 114,457.29, 170,989.72 and 74,148.14 is: 110,771.19
Step by Step Solution
- Step 1: Write the proportion equation
114,457.29 : 170,989.72 = 74,148.14 : x - Step 2: Convert to fraction form
114,457.29/170,989.72 = 74,148.14/x - Step 3: Cross multiply
114,457.29x = 170,989.72 × 74,148.14 - Step 4: Simplify right side
114,457.29x = 12,678,569,939.22 - Step 5: Solve for x
x = 12,678,569,939.22/114,457.29 - Step 6: Final answer
x = 110,771.19
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.