Finding the Fourth Proportional to 135,700.29, 187,143.84 and 84,717.75
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Solution
The fourth proportional to 135,700.29, 187,143.84 and 84,717.75 is: 116,833.98
Step by Step Solution
- Step 1: Write the proportion equation
135,700.29 : 187,143.84 = 84,717.75 : x - Step 2: Convert to fraction form
135,700.29/187,143.84 = 84,717.75/x - Step 3: Cross multiply
135,700.29x = 187,143.84 × 84,717.75 - Step 4: Simplify right side
135,700.29x = 15,854,405,051.16 - Step 5: Solve for x
x = 15,854,405,051.16/135,700.29 - Step 6: Final answer
x = 116,833.98
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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.