Finding the Fourth Proportional to 116,925.63, 161,249.73 and 76,624.76
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Solution
The fourth proportional to 116,925.63, 161,249.73 and 76,624.76 is: 105,671.62
Step by Step Solution
- Step 1: Write the proportion equation
116,925.63 : 161,249.73 = 76,624.76 : x - Step 2: Convert to fraction form
116,925.63/161,249.73 = 76,624.76/x - Step 3: Cross multiply
116,925.63x = 161,249.73 × 76,624.76 - Step 4: Simplify right side
116,925.63x = 12,355,721,055.07 - Step 5: Solve for x
x = 12,355,721,055.07/116,925.63 - Step 6: Final answer
x = 105,671.62
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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.