Finding the Fourth Proportional to 112,135.93, 154,745.64 and 61,149.06
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Solution
The fourth proportional to 112,135.93, 154,745.64 and 61,149.06 is: 84,384.64
Step by Step Solution
- Step 1: Write the proportion equation
112,135.93 : 154,745.64 = 61,149.06 : x - Step 2: Convert to fraction form
112,135.93/154,745.64 = 61,149.06/x - Step 3: Cross multiply
112,135.93x = 154,745.64 × 61,149.06 - Step 4: Simplify right side
112,135.93x = 9,462,550,425.10 - Step 5: Solve for x
x = 9,462,550,425.10/112,135.93 - Step 6: Final answer
x = 84,384.64
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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.