Finding the Fourth Proportional to 127,979.55, 192,006.21 and 39,246.14
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Solution
The fourth proportional to 127,979.55, 192,006.21 and 39,246.14 is: 58,880.52
Step by Step Solution
- Step 1: Write the proportion equation
127,979.55 : 192,006.21 = 39,246.14 : x - Step 2: Convert to fraction form
127,979.55/192,006.21 = 39,246.14/x - Step 3: Cross multiply
127,979.55x = 192,006.21 × 39,246.14 - Step 4: Simplify right side
127,979.55x = 7,535,502,598.53 - Step 5: Solve for x
x = 7,535,502,598.53/127,979.55 - Step 6: Final answer
x = 58,880.52
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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.