Finding the Fourth Proportional to 141,331.70, 195,038.99 and 76,800.96
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Solution
The fourth proportional to 141,331.70, 195,038.99 and 76,800.96 is: 105,986.00
Step by Step Solution
- Step 1: Write the proportion equation
141,331.70 : 195,038.99 = 76,800.96 : x - Step 2: Convert to fraction form
141,331.70/195,038.99 = 76,800.96/x - Step 3: Cross multiply
141,331.70x = 195,038.99 × 76,800.96 - Step 4: Simplify right side
141,331.70x = 14,979,181,573.43 - Step 5: Solve for x
x = 14,979,181,573.43/141,331.70 - Step 6: Final answer
x = 105,986.00
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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.