Finding the Fourth Proportional to 106,480.40, 159,720.60 and 97,878.80
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Solution
The fourth proportional to 106,480.40, 159,720.60 and 97,878.80 is: 146,818.20
Step by Step Solution
- Step 1: Write the proportion equation
106,480.40 : 159,720.60 = 97,878.80 : x - Step 2: Convert to fraction form
106,480.40/159,720.60 = 97,878.80/x - Step 3: Cross multiply
106,480.40x = 159,720.60 × 97,878.80 - Step 4: Simplify right side
106,480.40x = 15,633,260,663.28 - Step 5: Solve for x
x = 15,633,260,663.28/106,480.40 - Step 6: Final answer
x = 146,818.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.