Finding the Fourth Proportional to 124,173.99, 171,396.36 and 81,159.75
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Solution
The fourth proportional to 124,173.99, 171,396.36 and 81,159.75 is: 112,024.15
Step by Step Solution
- Step 1: Write the proportion equation
124,173.99 : 171,396.36 = 81,159.75 : x - Step 2: Convert to fraction form
124,173.99/171,396.36 = 81,159.75/x - Step 3: Cross multiply
124,173.99x = 171,396.36 × 81,159.75 - Step 4: Simplify right side
124,173.99x = 13,910,485,728.51 - Step 5: Solve for x
x = 13,910,485,728.51/124,173.99 - Step 6: Final answer
x = 112,024.15
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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.