Finding the Fourth Proportional to 117,649.08, 162,273.62 and 77,349.96
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Solution
The fourth proportional to 117,649.08, 162,273.62 and 77,349.96 is: 106,688.96
Step by Step Solution
- Step 1: Write the proportion equation
117,649.08 : 162,273.62 = 77,349.96 : x - Step 2: Convert to fraction form
117,649.08/162,273.62 = 77,349.96/x - Step 3: Cross multiply
117,649.08x = 162,273.62 × 77,349.96 - Step 4: Simplify right side
117,649.08x = 12,551,858,016.06 - Step 5: Solve for x
x = 12,551,858,016.06/117,649.08 - Step 6: Final answer
x = 106,688.96
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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.