Finding the Fourth Proportional to 135,502.29, 186,993.18 and 74,248.74
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Solution
The fourth proportional to 135,502.29, 186,993.18 and 74,248.74 is: 102,463.27
Step by Step Solution
- Step 1: Write the proportion equation
135,502.29 : 186,993.18 = 74,248.74 : x - Step 2: Convert to fraction form
135,502.29/186,993.18 = 74,248.74/x - Step 3: Cross multiply
135,502.29x = 186,993.18 × 74,248.74 - Step 4: Simplify right side
135,502.29x = 13,884,008,003.59 - Step 5: Solve for x
x = 13,884,008,003.59/135,502.29 - Step 6: Final answer
x = 102,463.27
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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.