Finding the Fourth Proportional to 129,132.36, 193,691.02 and 58,036.68
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Solution
The fourth proportional to 129,132.36, 193,691.02 and 58,036.68 is: 87,051.64
Step by Step Solution
- Step 1: Write the proportion equation
129,132.36 : 193,691.02 = 58,036.68 : x - Step 2: Convert to fraction form
129,132.36/193,691.02 = 58,036.68/x - Step 3: Cross multiply
129,132.36x = 193,691.02 × 58,036.68 - Step 4: Simplify right side
129,132.36x = 11,241,183,746.61 - Step 5: Solve for x
x = 11,241,183,746.61/129,132.36 - Step 6: Final answer
x = 87,051.64
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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.