Finding the Fourth Proportional to 136,122.06, 204,204.87 and 47,400.78
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Solution
The fourth proportional to 136,122.06, 204,204.87 and 47,400.78 is: 71,108.75
Step by Step Solution
- Step 1: Write the proportion equation
136,122.06 : 204,204.87 = 47,400.78 : x - Step 2: Convert to fraction form
136,122.06/204,204.87 = 47,400.78/x - Step 3: Cross multiply
136,122.06x = 204,204.87 × 47,400.78 - Step 4: Simplify right side
136,122.06x = 9,679,470,117.80 - Step 5: Solve for x
x = 9,679,470,117.80/136,122.06 - Step 6: Final answer
x = 71,108.75
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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.