Finding the Fourth Proportional to 112,468.19, 155,206.13 and 61,481.14
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Solution
The fourth proportional to 112,468.19, 155,206.13 and 61,481.14 is: 84,843.99
Step by Step Solution
- Step 1: Write the proportion equation
112,468.19 : 155,206.13 = 61,481.14 : x - Step 2: Convert to fraction form
112,468.19/155,206.13 = 61,481.14/x - Step 3: Cross multiply
112,468.19x = 155,206.13 × 61,481.14 - Step 4: Simplify right side
112,468.19x = 9,542,249,536.53 - Step 5: Solve for x
x = 9,542,249,536.53/112,468.19 - Step 6: Final answer
x = 84,843.99
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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.