Finding the Fourth Proportional to 98,717.94, 136,233.09 and 56,280.42
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Solution
The fourth proportional to 98,717.94, 136,233.09 and 56,280.42 is: 77,668.31
Step by Step Solution
- Step 1: Write the proportion equation
98,717.94 : 136,233.09 = 56,280.42 : x - Step 2: Convert to fraction form
98,717.94/136,233.09 = 56,280.42/x - Step 3: Cross multiply
98,717.94x = 136,233.09 × 56,280.42 - Step 4: Simplify right side
98,717.94x = 7,667,255,523.10 - Step 5: Solve for x
x = 7,667,255,523.10/98,717.94 - Step 6: Final answer
x = 77,668.31
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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.