Finding the Fourth Proportional to 132,519.36, 198,710.40 and 39,012.80
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Solution
The fourth proportional to 132,519.36, 198,710.40 and 39,012.80 is: 58,498.99
Step by Step Solution
- Step 1: Write the proportion equation
132,519.36 : 198,710.40 = 39,012.80 : x - Step 2: Convert to fraction form
132,519.36/198,710.40 = 39,012.80/x - Step 3: Cross multiply
132,519.36x = 198,710.40 × 39,012.80 - Step 4: Simplify right side
132,519.36x = 7,752,249,093.12 - Step 5: Solve for x
x = 7,752,249,093.12/132,519.36 - Step 6: Final answer
x = 58,498.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.