Finding the Fourth Proportional to 107,811.80, 161,746.86 and 61,097.48
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Solution
The fourth proportional to 107,811.80, 161,746.86 and 61,097.48 is: 91,662.75
Step by Step Solution
- Step 1: Write the proportion equation
107,811.80 : 161,746.86 = 61,097.48 : x - Step 2: Convert to fraction form
107,811.80/161,746.86 = 61,097.48/x - Step 3: Cross multiply
107,811.80x = 161,746.86 × 61,097.48 - Step 4: Simplify right side
107,811.80x = 9,882,325,543.91 - Step 5: Solve for x
x = 9,882,325,543.91/107,811.80 - Step 6: Final answer
x = 91,662.75
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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.