Finding the Fourth Proportional to 135,015.74, 186,319.04 and 74,585.81
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Solution
The fourth proportional to 135,015.74, 186,319.04 and 74,585.81 is: 102,926.94
Step by Step Solution
- Step 1: Write the proportion equation
135,015.74 : 186,319.04 = 74,585.81 : x - Step 2: Convert to fraction form
135,015.74/186,319.04 = 74,585.81/x - Step 3: Cross multiply
135,015.74x = 186,319.04 × 74,585.81 - Step 4: Simplify right side
135,015.74x = 13,896,756,609.69 - Step 5: Solve for x
x = 13,896,756,609.69/135,015.74 - Step 6: Final answer
x = 102,926.94
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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.