Finding the Fourth Proportional to 157,871.08, 217,864.02 and 86,251.96
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Solution
The fourth proportional to 157,871.08, 217,864.02 and 86,251.96 is: 119,028.76
Step by Step Solution
- Step 1: Write the proportion equation
157,871.08 : 217,864.02 = 86,251.96 : x - Step 2: Convert to fraction form
157,871.08/217,864.02 = 86,251.96/x - Step 3: Cross multiply
157,871.08x = 217,864.02 × 86,251.96 - Step 4: Simplify right side
157,871.08x = 18,791,198,738.48 - Step 5: Solve for x
x = 18,791,198,738.48/157,871.08 - Step 6: Final answer
x = 119,028.76
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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.