Finding the Fourth Proportional to 129,331.87, 178,376.85 and 84,024.44
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Solution
The fourth proportional to 129,331.87, 178,376.85 and 84,024.44 is: 115,888.02
Step by Step Solution
- Step 1: Write the proportion equation
129,331.87 : 178,376.85 = 84,024.44 : x - Step 2: Convert to fraction form
129,331.87/178,376.85 = 84,024.44/x - Step 3: Cross multiply
129,331.87x = 178,376.85 × 84,024.44 - Step 4: Simplify right side
129,331.87x = 14,988,014,930.21 - Step 5: Solve for x
x = 14,988,014,930.21/129,331.87 - Step 6: Final answer
x = 115,888.02
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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.