Finding the Fourth Proportional to 105,445.70, 158,189.64 and 38,886.14
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Solution
The fourth proportional to 105,445.70, 158,189.64 and 38,886.14 is: 58,336.99
Step by Step Solution
- Step 1: Write the proportion equation
105,445.70 : 158,189.64 = 38,886.14 : x - Step 2: Convert to fraction form
105,445.70/158,189.64 = 38,886.14/x - Step 3: Cross multiply
105,445.70x = 158,189.64 × 38,886.14 - Step 4: Simplify right side
105,445.70x = 6,151,384,487.59 - Step 5: Solve for x
x = 6,151,384,487.59/105,445.70 - Step 6: Final answer
x = 58,336.99
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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.