Finding the Fourth Proportional to 149,132.46, 205,806.32 and 84,606.05
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Solution
The fourth proportional to 149,132.46, 205,806.32 and 84,606.05 is: 116,758.35
Step by Step Solution
- Step 1: Write the proportion equation
149,132.46 : 205,806.32 = 84,606.05 : x - Step 2: Convert to fraction form
149,132.46/205,806.32 = 84,606.05/x - Step 3: Cross multiply
149,132.46x = 205,806.32 × 84,606.05 - Step 4: Simplify right side
149,132.46x = 17,412,459,800.24 - Step 5: Solve for x
x = 17,412,459,800.24/149,132.46 - Step 6: Final answer
x = 116,758.35
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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.