Finding the Fourth Proportional to 124,157.67, 171,334.36 and 72,484.66
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Solution
The fourth proportional to 124,157.67, 171,334.36 and 72,484.66 is: 100,026.95
Step by Step Solution
- Step 1: Write the proportion equation
124,157.67 : 171,334.36 = 72,484.66 : x - Step 2: Convert to fraction form
124,157.67/171,334.36 = 72,484.66/x - Step 3: Cross multiply
124,157.67x = 171,334.36 × 72,484.66 - Step 4: Simplify right side
124,157.67x = 12,419,112,727.97 - Step 5: Solve for x
x = 12,419,112,727.97/124,157.67 - Step 6: Final answer
x = 100,026.95
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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.