Finding the Fourth Proportional to 117,295.29, 161,867.61 and 63,580.26
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Solution
The fourth proportional to 117,295.29, 161,867.61 and 63,580.26 is: 87,740.82
Step by Step Solution
- Step 1: Write the proportion equation
117,295.29 : 161,867.61 = 63,580.26 : x - Step 2: Convert to fraction form
117,295.29/161,867.61 = 63,580.26/x - Step 3: Cross multiply
117,295.29x = 161,867.61 × 63,580.26 - Step 4: Simplify right side
117,295.29x = 10,291,584,729.38 - Step 5: Solve for x
x = 10,291,584,729.38/117,295.29 - Step 6: Final answer
x = 87,740.82
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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.