Finding the Fourth Proportional to 134,624.11, 185,781.27 and 74,194.75
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Solution
The fourth proportional to 134,624.11, 185,781.27 and 74,194.75 is: 102,388.76
Step by Step Solution
- Step 1: Write the proportion equation
134,624.11 : 185,781.27 = 74,194.75 : x - Step 2: Convert to fraction form
134,624.11/185,781.27 = 74,194.75/x - Step 3: Cross multiply
134,624.11x = 185,781.27 × 74,194.75 - Step 4: Simplify right side
134,624.11x = 13,783,995,021.82 - Step 5: Solve for x
x = 13,783,995,021.82/134,624.11 - Step 6: Final answer
x = 102,388.76
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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.