Finding the Fourth Proportional to 126,390.56, 174,474.72 and 75,420.96
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Solution
The fourth proportional to 126,390.56, 174,474.72 and 75,420.96 is: 104,114.19
Step by Step Solution
- Step 1: Write the proportion equation
126,390.56 : 174,474.72 = 75,420.96 : x - Step 2: Convert to fraction form
126,390.56/174,474.72 = 75,420.96/x - Step 3: Cross multiply
126,390.56x = 174,474.72 × 75,420.96 - Step 4: Simplify right side
126,390.56x = 13,159,050,878.13 - Step 5: Solve for x
x = 13,159,050,878.13/126,390.56 - Step 6: Final answer
x = 104,114.19
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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.