Finding the Fourth Proportional to 101,193.36, 139,516.99 and 82,976.95
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Solution
The fourth proportional to 101,193.36, 139,516.99 and 82,976.95 is: 114,401.72
Step by Step Solution
- Step 1: Write the proportion equation
101,193.36 : 139,516.99 = 82,976.95 : x - Step 2: Convert to fraction form
101,193.36/139,516.99 = 82,976.95/x - Step 3: Cross multiply
101,193.36x = 139,516.99 × 82,976.95 - Step 4: Simplify right side
101,193.36x = 11,576,694,303.38 - Step 5: Solve for x
x = 11,576,694,303.38/101,193.36 - Step 6: Final answer
x = 114,401.72
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1.5x scale
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.