Finding the Fourth Proportional to 117,104.96, 161,605.40 and 63,390.02
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Solution
The fourth proportional to 117,104.96, 161,605.40 and 63,390.02 is: 87,478.52
Step by Step Solution
- Step 1: Write the proportion equation
117,104.96 : 161,605.40 = 63,390.02 : x - Step 2: Convert to fraction form
117,104.96/161,605.40 = 63,390.02/x - Step 3: Cross multiply
117,104.96x = 161,605.40 × 63,390.02 - Step 4: Simplify right side
117,104.96x = 10,244,168,413.13 - Step 5: Solve for x
x = 10,244,168,413.13/117,104.96 - Step 6: Final answer
x = 87,478.52
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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.