Finding the Fourth Proportional to 112,177.75, 154,816.23 and 61,876.75
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Solution
The fourth proportional to 112,177.75, 154,816.23 and 61,876.75 is: 85,395.95
Step by Step Solution
- Step 1: Write the proportion equation
112,177.75 : 154,816.23 = 61,876.75 : x - Step 2: Convert to fraction form
112,177.75/154,816.23 = 61,876.75/x - Step 3: Cross multiply
112,177.75x = 154,816.23 × 61,876.75 - Step 4: Simplify right side
112,177.75x = 9,579,525,159.65 - Step 5: Solve for x
x = 9,579,525,159.65/112,177.75 - Step 6: Final answer
x = 85,395.95
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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.