Finding the Fourth Proportional to 134,138.75, 185,110.92 and 76,777.79
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Solution
The fourth proportional to 134,138.75, 185,110.92 and 76,777.79 is: 105,953.03
Step by Step Solution
- Step 1: Write the proportion equation
134,138.75 : 185,110.92 = 76,777.79 : x - Step 2: Convert to fraction form
134,138.75/185,110.92 = 76,777.79/x - Step 3: Cross multiply
134,138.75x = 185,110.92 × 76,777.79 - Step 4: Simplify right side
134,138.75x = 14,212,406,416.91 - Step 5: Solve for x
x = 14,212,406,416.91/134,138.75 - Step 6: Final answer
x = 105,953.03
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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.