Finding the Fourth Proportional to 125,177.88, 172,745.47 and 74,876.88
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Solution
The fourth proportional to 125,177.88, 172,745.47 and 74,876.88 is: 103,330.09
Step by Step Solution
- Step 1: Write the proportion equation
125,177.88 : 172,745.47 = 74,876.88 : x - Step 2: Convert to fraction form
125,177.88/172,745.47 = 74,876.88/x - Step 3: Cross multiply
125,177.88x = 172,745.47 × 74,876.88 - Step 4: Simplify right side
125,177.88x = 12,934,641,827.73 - Step 5: Solve for x
x = 12,934,641,827.73/125,177.88 - Step 6: Final answer
x = 103,330.09
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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.