Finding the Fourth Proportional to 114,776.40, 172,231.68 and 48,211.68
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Solution
The fourth proportional to 114,776.40, 172,231.68 and 48,211.68 is: 72,345.70
Step by Step Solution
- Step 1: Write the proportion equation
114,776.40 : 172,231.68 = 48,211.68 : x - Step 2: Convert to fraction form
114,776.40/172,231.68 = 48,211.68/x - Step 3: Cross multiply
114,776.40x = 172,231.68 × 48,211.68 - Step 4: Simplify right side
114,776.40x = 8,303,578,642.02 - Step 5: Solve for x
x = 8,303,578,642.02/114,776.40 - Step 6: Final answer
x = 72,345.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.