Finding the Fourth Proportional to 134,163.08, 185,134.26 and 77,578.12
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Solution
The fourth proportional to 134,163.08, 185,134.26 and 77,578.12 is: 107,051.57
Step by Step Solution
- Step 1: Write the proportion equation
134,163.08 : 185,134.26 = 77,578.12 : x - Step 2: Convert to fraction form
134,163.08/185,134.26 = 77,578.12/x - Step 3: Cross multiply
134,163.08x = 185,134.26 × 77,578.12 - Step 4: Simplify right side
134,163.08x = 14,362,367,838.39 - Step 5: Solve for x
x = 14,362,367,838.39/134,163.08 - Step 6: Final answer
x = 107,051.57
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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.