Finding the Fourth Proportional to 135,228.96, 186,615.36 and 75,612.96
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Solution
The fourth proportional to 135,228.96, 186,615.36 and 75,612.96 is: 104,345.55
Step by Step Solution
- Step 1: Write the proportion equation
135,228.96 : 186,615.36 = 75,612.96 : x - Step 2: Convert to fraction form
135,228.96/186,615.36 = 75,612.96/x - Step 3: Cross multiply
135,228.96x = 186,615.36 × 75,612.96 - Step 4: Simplify right side
135,228.96x = 14,110,539,751.07 - Step 5: Solve for x
x = 14,110,539,751.07/135,228.96 - Step 6: Final answer
x = 104,345.55
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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.