Finding the Fourth Proportional to 118,130.67, 163,049.36 and 91,232.19
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Solution
The fourth proportional to 118,130.67, 163,049.36 and 91,232.19 is: 125,922.84
Step by Step Solution
- Step 1: Write the proportion equation
118,130.67 : 163,049.36 = 91,232.19 : x - Step 2: Convert to fraction form
118,130.67/163,049.36 = 91,232.19/x - Step 3: Cross multiply
118,130.67x = 163,049.36 × 91,232.19 - Step 4: Simplify right side
118,130.67x = 14,875,349,734.74 - Step 5: Solve for x
x = 14,875,349,734.74/118,130.67 - Step 6: Final answer
x = 125,922.84
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1.5x scale
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.