Finding the Fourth Proportional to 106,386.68, 146,811.02 and 58,638.98
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Solution
The fourth proportional to 106,386.68, 146,811.02 and 58,638.98 is: 80,920.35
Step by Step Solution
- Step 1: Write the proportion equation
106,386.68 : 146,811.02 = 58,638.98 : x - Step 2: Convert to fraction form
106,386.68/146,811.02 = 58,638.98/x - Step 3: Cross multiply
106,386.68x = 146,811.02 × 58,638.98 - Step 4: Simplify right side
106,386.68x = 8,608,847,438.31 - Step 5: Solve for x
x = 8,608,847,438.31/106,386.68 - Step 6: Final answer
x = 80,920.35
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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.