Finding the Fourth Proportional to 135,352.09, 186,787.53 and 74,928.32
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Solution
The fourth proportional to 135,352.09, 186,787.53 and 74,928.32 is: 103,401.99
Step by Step Solution
- Step 1: Write the proportion equation
135,352.09 : 186,787.53 = 74,928.32 : x - Step 2: Convert to fraction form
135,352.09/186,787.53 = 74,928.32/x - Step 3: Cross multiply
135,352.09x = 186,787.53 × 74,928.32 - Step 4: Simplify right side
135,352.09x = 13,995,674,511.27 - Step 5: Solve for x
x = 13,995,674,511.27/135,352.09 - Step 6: Final answer
x = 103,401.99
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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.