Finding the Fourth Proportional to 127,985.30, 192,064.35 and 83,503.70
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Solution
The fourth proportional to 127,985.30, 192,064.35 and 83,503.70 is: 125,311.92
Step by Step Solution
- Step 1: Write the proportion equation
127,985.30 : 192,064.35 = 83,503.70 : x - Step 2: Convert to fraction form
127,985.30/192,064.35 = 83,503.70/x - Step 3: Cross multiply
127,985.30x = 192,064.35 × 83,503.70 - Step 4: Simplify right side
127,985.30x = 16,038,083,863.10 - Step 5: Solve for x
x = 16,038,083,863.10/127,985.30 - Step 6: Final answer
x = 125,311.92
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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.