Finding the Fourth Proportional to 135,958.48, 187,690.92 and 84,999.52
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Solution
The fourth proportional to 135,958.48, 187,690.92 and 84,999.52 is: 117,341.99
Step by Step Solution
- Step 1: Write the proportion equation
135,958.48 : 187,690.92 = 84,999.52 : x - Step 2: Convert to fraction form
135,958.48/187,690.92 = 84,999.52/x - Step 3: Cross multiply
135,958.48x = 187,690.92 × 84,999.52 - Step 4: Simplify right side
135,958.48x = 15,953,638,108.36 - Step 5: Solve for x
x = 15,953,638,108.36/135,958.48 - Step 6: Final answer
x = 117,341.99
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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.