Finding the Fourth Proportional to 135,340.44, 186,765.04 and 74,911.20
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Solution
The fourth proportional to 135,340.44, 186,765.04 and 74,911.20 is: 103,374.82
Step by Step Solution
- Step 1: Write the proportion equation
135,340.44 : 186,765.04 = 74,911.20 : x - Step 2: Convert to fraction form
135,340.44/186,765.04 = 74,911.20/x - Step 3: Cross multiply
135,340.44x = 186,765.04 × 74,911.20 - Step 4: Simplify right side
135,340.44x = 13,990,793,264.45 - Step 5: Solve for x
x = 13,990,793,264.45/135,340.44 - Step 6: Final answer
x = 103,374.82
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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.