Finding the Fourth Proportional to 106,021.09, 146,250.39 and 67,187.80
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Solution
The fourth proportional to 106,021.09, 146,250.39 and 67,187.80 is: 92,681.96
Step by Step Solution
- Step 1: Write the proportion equation
106,021.09 : 146,250.39 = 67,187.80 : x - Step 2: Convert to fraction form
106,021.09/146,250.39 = 67,187.80/x - Step 3: Cross multiply
106,021.09x = 146,250.39 × 67,187.80 - Step 4: Simplify right side
106,021.09x = 9,826,241,953.24 - Step 5: Solve for x
x = 9,826,241,953.24/106,021.09 - Step 6: Final answer
x = 92,681.96
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1.5x scale
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.