Finding the Fourth Proportional to 101,154.65, 139,645.87 and 73,900.13
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Solution
The fourth proportional to 101,154.65, 139,645.87 and 73,900.13 is: 102,020.50
Step by Step Solution
- Step 1: Write the proportion equation
101,154.65 : 139,645.87 = 73,900.13 : x - Step 2: Convert to fraction form
101,154.65/139,645.87 = 73,900.13/x - Step 3: Cross multiply
101,154.65x = 139,645.87 × 73,900.13 - Step 4: Simplify right side
101,154.65x = 10,319,847,063.98 - Step 5: Solve for x
x = 10,319,847,063.98/101,154.65 - Step 6: Final answer
x = 102,020.50
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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.