Finding the Fourth Proportional to 139,365.17, 192,324.95 and 75,702.99
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Solution
The fourth proportional to 139,365.17, 192,324.95 and 75,702.99 is: 104,470.68
Step by Step Solution
- Step 1: Write the proportion equation
139,365.17 : 192,324.95 = 75,702.99 : x - Step 2: Convert to fraction form
139,365.17/192,324.95 = 75,702.99/x - Step 3: Cross multiply
139,365.17x = 192,324.95 × 75,702.99 - Step 4: Simplify right side
139,365.17x = 14,559,573,766.60 - Step 5: Solve for x
x = 14,559,573,766.60/139,365.17 - Step 6: Final answer
x = 104,470.68
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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.