Finding the Fourth Proportional to 193,122.60, 289,712.70 and 68,453.80
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Solution
The fourth proportional to 193,122.60, 289,712.70 and 68,453.80 is: 102,690.91
Step by Step Solution
- Step 1: Write the proportion equation
193,122.60 : 289,712.70 = 68,453.80 : x - Step 2: Convert to fraction form
193,122.60/289,712.70 = 68,453.80/x - Step 3: Cross multiply
193,122.60x = 289,712.70 × 68,453.80 - Step 4: Simplify right side
193,122.60x = 19,831,935,223.26 - Step 5: Solve for x
x = 19,831,935,223.26/193,122.60 - Step 6: Final answer
x = 102,690.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.