Finding the Fourth Proportional to 149,948.62, 206,923.50 and 81,965.04
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Solution
The fourth proportional to 149,948.62, 206,923.50 and 81,965.04 is: 113,108.70
Step by Step Solution
- Step 1: Write the proportion equation
149,948.62 : 206,923.50 = 81,965.04 : x - Step 2: Convert to fraction form
149,948.62/206,923.50 = 81,965.04/x - Step 3: Cross multiply
149,948.62x = 206,923.50 × 81,965.04 - Step 4: Simplify right side
149,948.62x = 16,960,492,954.44 - Step 5: Solve for x
x = 16,960,492,954.44/149,948.62 - Step 6: Final answer
x = 113,108.70
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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.