Finding the Fourth Proportional to 102,386.26, 141,294.45 and 57,062.98
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Solution
The fourth proportional to 102,386.26, 141,294.45 and 57,062.98 is: 78,747.70
Step by Step Solution
- Step 1: Write the proportion equation
102,386.26 : 141,294.45 = 57,062.98 : x - Step 2: Convert to fraction form
102,386.26/141,294.45 = 57,062.98/x - Step 3: Cross multiply
102,386.26x = 141,294.45 × 57,062.98 - Step 4: Simplify right side
102,386.26x = 8,062,682,374.46 - Step 5: Solve for x
x = 8,062,682,374.46/102,386.26 - Step 6: Final answer
x = 78,747.70
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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.