Finding the Fourth Proportional to 134,645.99, 185,803.08 and 74,217.11
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Solution
The fourth proportional to 134,645.99, 185,803.08 and 74,217.11 is: 102,414.99
Step by Step Solution
- Step 1: Write the proportion equation
134,645.99 : 185,803.08 = 74,217.11 : x - Step 2: Convert to fraction form
134,645.99/185,803.08 = 74,217.11/x - Step 3: Cross multiply
134,645.99x = 185,803.08 × 74,217.11 - Step 4: Simplify right side
134,645.99x = 13,789,767,626.70 - Step 5: Solve for x
x = 13,789,767,626.70/134,645.99 - Step 6: Final answer
x = 102,414.99
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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.