Finding the Fourth Proportional to 136,935.36, 205,364.16 and 43,438.68
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Solution
The fourth proportional to 136,935.36, 205,364.16 and 43,438.68 is: 65,145.69
Step by Step Solution
- Step 1: Write the proportion equation
136,935.36 : 205,364.16 = 43,438.68 : x - Step 2: Convert to fraction form
136,935.36/205,364.16 = 43,438.68/x - Step 3: Cross multiply
136,935.36x = 205,364.16 × 43,438.68 - Step 4: Simplify right side
136,935.36x = 8,920,748,029.71 - Step 5: Solve for x
x = 8,920,748,029.71/136,935.36 - Step 6: Final answer
x = 65,145.69
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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.