Finding the Fourth Proportional to 134,519.13, 185,634.48 and 74,089.89
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Solution
The fourth proportional to 134,519.13, 185,634.48 and 74,089.89 is: 102,242.99
Step by Step Solution
- Step 1: Write the proportion equation
134,519.13 : 185,634.48 = 74,089.89 : x - Step 2: Convert to fraction form
134,519.13/185,634.48 = 74,089.89/x - Step 3: Cross multiply
134,519.13x = 185,634.48 × 74,089.89 - Step 4: Simplify right side
134,519.13x = 13,753,638,481.24 - Step 5: Solve for x
x = 13,753,638,481.24/134,519.13 - Step 6: Final answer
x = 102,242.99
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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.