Finding the Fourth Proportional to 112,447.07, 168,670.62 and 45,918.53
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Solution
The fourth proportional to 112,447.07, 168,670.62 and 45,918.53 is: 68,877.80
Step by Step Solution
- Step 1: Write the proportion equation
112,447.07 : 168,670.62 = 45,918.53 : x - Step 2: Convert to fraction form
112,447.07/168,670.62 = 45,918.53/x - Step 3: Cross multiply
112,447.07x = 168,670.62 × 45,918.53 - Step 4: Simplify right side
112,447.07x = 7,745,106,081.24 - Step 5: Solve for x
x = 7,745,106,081.24/112,447.07 - Step 6: Final answer
x = 68,877.80
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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.