Finding the Fourth Proportional to 149,282.85, 206,018.99 and 112,423.09
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Solution
The fourth proportional to 149,282.85, 206,018.99 and 112,423.09 is: 155,150.39
Step by Step Solution
- Step 1: Write the proportion equation
149,282.85 : 206,018.99 = 112,423.09 : x - Step 2: Convert to fraction form
149,282.85/206,018.99 = 112,423.09/x - Step 3: Cross multiply
149,282.85x = 206,018.99 × 112,423.09 - Step 4: Simplify right side
149,282.85x = 23,161,291,817.57 - Step 5: Solve for x
x = 23,161,291,817.57/149,282.85 - Step 6: Final answer
x = 155,150.39
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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.