Finding the Fourth Proportional to 101,192.36, 139,515.62 and 82,975.95
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Solution
The fourth proportional to 101,192.36, 139,515.62 and 82,975.95 is: 114,400.35
Step by Step Solution
- Step 1: Write the proportion equation
101,192.36 : 139,515.62 = 82,975.95 : x - Step 2: Convert to fraction form
101,192.36/139,515.62 = 82,975.95/x - Step 3: Cross multiply
101,192.36x = 139,515.62 × 82,975.95 - Step 4: Simplify right side
101,192.36x = 11,576,440,694.46 - Step 5: Solve for x
x = 11,576,440,694.46/101,192.36 - Step 6: Final answer
x = 114,400.35
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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.