Finding the Fourth Proportional to 192,790.79, 266,013.48 and 121,129.29
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Solution
The fourth proportional to 192,790.79, 266,013.48 and 121,129.29 is: 167,134.66
Step by Step Solution
- Step 1: Write the proportion equation
192,790.79 : 266,013.48 = 121,129.29 : x - Step 2: Convert to fraction form
192,790.79/266,013.48 = 121,129.29/x - Step 3: Cross multiply
192,790.79x = 266,013.48 × 121,129.29 - Step 4: Simplify right side
192,790.79x = 32,222,023,508.59 - Step 5: Solve for x
x = 32,222,023,508.59/192,790.79 - Step 6: Final answer
x = 167,134.66
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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.