Finding the Fourth Proportional to 125,177.63, 172,745.12 and 74,876.63
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Solution
The fourth proportional to 125,177.63, 172,745.12 and 74,876.63 is: 103,329.74
Step by Step Solution
- Step 1: Write the proportion equation
125,177.63 : 172,745.12 = 74,876.63 : x - Step 2: Convert to fraction form
125,177.63/172,745.12 = 74,876.63/x - Step 3: Cross multiply
125,177.63x = 172,745.12 × 74,876.63 - Step 4: Simplify right side
125,177.63x = 12,934,571,758.01 - Step 5: Solve for x
x = 12,934,571,758.01/125,177.63 - Step 6: Final answer
x = 103,329.74
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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.