Finding the Fourth Proportional to 136,605.80, 204,908.70 and 83,461.70
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Solution
The fourth proportional to 136,605.80, 204,908.70 and 83,461.70 is: 125,192.55
Step by Step Solution
- Step 1: Write the proportion equation
136,605.80 : 204,908.70 = 83,461.70 : x - Step 2: Convert to fraction form
136,605.80/204,908.70 = 83,461.70/x - Step 3: Cross multiply
136,605.80x = 204,908.70 × 83,461.70 - Step 4: Simplify right side
136,605.80x = 17,102,028,446.79 - Step 5: Solve for x
x = 17,102,028,446.79/136,605.80 - Step 6: Final answer
x = 125,192.55
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1.5x scale
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.