Finding the Fourth Proportional to 133,163.24, 183,743.44 and 78,707.84
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Solution
The fourth proportional to 133,163.24, 183,743.44 and 78,707.84 is: 108,603.91
Step by Step Solution
- Step 1: Write the proportion equation
133,163.24 : 183,743.44 = 78,707.84 : x - Step 2: Convert to fraction form
133,163.24/183,743.44 = 78,707.84/x - Step 3: Cross multiply
133,163.24x = 183,743.44 × 78,707.84 - Step 4: Simplify right side
133,163.24x = 14,462,048,161.08 - Step 5: Solve for x
x = 14,462,048,161.08/133,163.24 - Step 6: Final answer
x = 108,603.91
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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.