Finding the Fourth Proportional to 101,207.46, 139,678.61 and 58,765.99
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Solution
The fourth proportional to 101,207.46, 139,678.61 and 58,765.99 is: 81,104.22
Step by Step Solution
- Step 1: Write the proportion equation
101,207.46 : 139,678.61 = 58,765.99 : x - Step 2: Convert to fraction form
101,207.46/139,678.61 = 58,765.99/x - Step 3: Cross multiply
101,207.46x = 139,678.61 × 58,765.99 - Step 4: Simplify right side
101,207.46x = 8,208,351,798.47 - Step 5: Solve for x
x = 8,208,351,798.47/101,207.46 - Step 6: Final answer
x = 81,104.22
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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.