Finding the Fourth Proportional to 101,553.57, 139,997.03 and 71,244.99
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Solution
The fourth proportional to 101,553.57, 139,997.03 and 71,244.99 is: 98,215.03
Step by Step Solution
- Step 1: Write the proportion equation
101,553.57 : 139,997.03 = 71,244.99 : x - Step 2: Convert to fraction form
101,553.57/139,997.03 = 71,244.99/x - Step 3: Cross multiply
101,553.57x = 139,997.03 × 71,244.99 - Step 4: Simplify right side
101,553.57x = 9,974,086,646.15 - Step 5: Solve for x
x = 9,974,086,646.15/101,553.57 - Step 6: Final answer
x = 98,215.03
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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.