Finding the Fourth Proportional to 144,601.05, 216,771.98 and 128,854.65
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Solution
The fourth proportional to 144,601.05, 216,771.98 and 128,854.65 is: 193,166.49
Step by Step Solution
- Step 1: Write the proportion equation
144,601.05 : 216,771.98 = 128,854.65 : x - Step 2: Convert to fraction form
144,601.05/216,771.98 = 128,854.65/x - Step 3: Cross multiply
144,601.05x = 216,771.98 × 128,854.65 - Step 4: Simplify right side
144,601.05x = 27,932,076,968.43 - Step 5: Solve for x
x = 27,932,076,968.43/144,601.05 - Step 6: Final answer
x = 193,166.49
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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.