Finding the Fourth Proportional to 112,431.24, 168,255.63 and 69,716.70
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Solution
The fourth proportional to 112,431.24, 168,255.63 and 69,716.70 is: 104,332.45
Step by Step Solution
- Step 1: Write the proportion equation
112,431.24 : 168,255.63 = 69,716.70 : x - Step 2: Convert to fraction form
112,431.24/168,255.63 = 69,716.70/x - Step 3: Cross multiply
112,431.24x = 168,255.63 × 69,716.70 - Step 4: Simplify right side
112,431.24x = 11,730,227,280.02 - Step 5: Solve for x
x = 11,730,227,280.02/112,431.24 - Step 6: Final answer
x = 104,332.45
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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.