Finding the Fourth Proportional to 135,457.23, 186,928.94 and 74,202.93
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Solution
The fourth proportional to 135,457.23, 186,928.94 and 74,202.93 is: 102,398.92
Step by Step Solution
- Step 1: Write the proportion equation
135,457.23 : 186,928.94 = 74,202.93 : x - Step 2: Convert to fraction form
135,457.23/186,928.94 = 74,202.93/x - Step 3: Cross multiply
135,457.23x = 186,928.94 × 74,202.93 - Step 4: Simplify right side
135,457.23x = 13,870,674,678.78 - Step 5: Solve for x
x = 13,870,674,678.78/135,457.23 - Step 6: Final answer
x = 102,398.92
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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.