Finding the Fourth Proportional to 126,356.19, 189,625.74 and 49,430.53
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Solution
The fourth proportional to 126,356.19, 189,625.74 and 49,430.53 is: 74,181.57
Step by Step Solution
- Step 1: Write the proportion equation
126,356.19 : 189,625.74 = 49,430.53 : x - Step 2: Convert to fraction form
126,356.19/189,625.74 = 49,430.53/x - Step 3: Cross multiply
126,356.19x = 189,625.74 × 49,430.53 - Step 4: Simplify right side
126,356.19x = 9,373,300,943.30 - Step 5: Solve for x
x = 9,373,300,943.30/126,356.19 - Step 6: Final answer
x = 74,181.57
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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.