Finding the Fourth Proportional to 115,346.96, 159,257.49 and 74,609.81
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Solution
The fourth proportional to 115,346.96, 159,257.49 and 74,609.81 is: 103,012.43
Step by Step Solution
- Step 1: Write the proportion equation
115,346.96 : 159,257.49 = 74,609.81 : x - Step 2: Convert to fraction form
115,346.96/159,257.49 = 74,609.81/x - Step 3: Cross multiply
115,346.96x = 159,257.49 × 74,609.81 - Step 4: Simplify right side
115,346.96x = 11,882,171,069.98 - Step 5: Solve for x
x = 11,882,171,069.98/115,346.96 - Step 6: Final answer
x = 103,012.43
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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.