Finding the Fourth Proportional to 129,848.88, 179,190.68 and 72,484.88
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Solution
The fourth proportional to 129,848.88, 179,190.68 and 72,484.88 is: 100,028.70
Step by Step Solution
- Step 1: Write the proportion equation
129,848.88 : 179,190.68 = 72,484.88 : x - Step 2: Convert to fraction form
129,848.88/179,190.68 = 72,484.88/x - Step 3: Cross multiply
129,848.88x = 179,190.68 × 72,484.88 - Step 4: Simplify right side
129,848.88x = 12,988,614,936.92 - Step 5: Solve for x
x = 12,988,614,936.92/129,848.88 - Step 6: Final answer
x = 100,028.70
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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.