Finding the Fourth Proportional to 134,789.40, 186,008.84 and 74,363.81
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Solution
The fourth proportional to 134,789.40, 186,008.84 and 74,363.81 is: 102,621.75
Step by Step Solution
- Step 1: Write the proportion equation
134,789.40 : 186,008.84 = 74,363.81 : x - Step 2: Convert to fraction form
134,789.40/186,008.84 = 74,363.81/x - Step 3: Cross multiply
134,789.40x = 186,008.84 × 74,363.81 - Step 4: Simplify right side
134,789.40x = 13,832,324,734.22 - Step 5: Solve for x
x = 13,832,324,734.22/134,789.40 - Step 6: Final answer
x = 102,621.75
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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.