Finding the Fourth Proportional to 94,143.08, 129,869.41 and 60,115.79
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Solution
The fourth proportional to 94,143.08, 129,869.41 and 60,115.79 is: 82,929.11
Step by Step Solution
- Step 1: Write the proportion equation
94,143.08 : 129,869.41 = 60,115.79 : x - Step 2: Convert to fraction form
94,143.08/129,869.41 = 60,115.79/x - Step 3: Cross multiply
94,143.08x = 129,869.41 × 60,115.79 - Step 4: Simplify right side
94,143.08x = 7,807,202,178.98 - Step 5: Solve for x
x = 7,807,202,178.98/94,143.08 - Step 6: Final answer
x = 82,929.11
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1.5x scale
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.