Finding the Fourth Proportional to 135,254.44, 186,629.70 and 87,509.80
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Solution
The fourth proportional to 135,254.44, 186,629.70 and 87,509.80 is: 120,749.66
Step by Step Solution
- Step 1: Write the proportion equation
135,254.44 : 186,629.70 = 87,509.80 : x - Step 2: Convert to fraction form
135,254.44/186,629.70 = 87,509.80/x - Step 3: Cross multiply
135,254.44x = 186,629.70 × 87,509.80 - Step 4: Simplify right side
135,254.44x = 16,331,927,721.06 - Step 5: Solve for x
x = 16,331,927,721.06/135,254.44 - Step 6: Final answer
x = 120,749.66
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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.