Finding the Fourth Proportional to 106,325.40, 146,729.19 and 57,927.09
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Solution
The fourth proportional to 106,325.40, 146,729.19 and 57,927.09 is: 79,939.46
Step by Step Solution
- Step 1: Write the proportion equation
106,325.40 : 146,729.19 = 57,927.09 : x - Step 2: Convert to fraction form
106,325.40/146,729.19 = 57,927.09/x - Step 3: Cross multiply
106,325.40x = 146,729.19 × 57,927.09 - Step 4: Simplify right side
106,325.40x = 8,499,594,994.76 - Step 5: Solve for x
x = 8,499,594,994.76/106,325.40 - Step 6: Final answer
x = 79,939.46
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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.