Finding the Fourth Proportional to 149,740.99, 206,642.99 and 81,758.55
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Solution
The fourth proportional to 149,740.99, 206,642.99 and 81,758.55 is: 112,827.03
Step by Step Solution
- Step 1: Write the proportion equation
149,740.99 : 206,642.99 = 81,758.55 : x - Step 2: Convert to fraction form
149,740.99/206,642.99 = 81,758.55/x - Step 3: Cross multiply
149,740.99x = 206,642.99 × 81,758.55 - Step 4: Simplify right side
149,740.99x = 16,894,831,434.46 - Step 5: Solve for x
x = 16,894,831,434.46/149,740.99 - Step 6: Final answer
x = 112,827.03
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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.