Finding the Fourth Proportional to 117,269.29, 161,831.21 and 63,555.63
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Solution
The fourth proportional to 117,269.29, 161,831.21 and 63,555.63 is: 87,706.54
Step by Step Solution
- Step 1: Write the proportion equation
117,269.29 : 161,831.21 = 63,555.63 : x - Step 2: Convert to fraction form
117,269.29/161,831.21 = 63,555.63/x - Step 3: Cross multiply
117,269.29x = 161,831.21 × 63,555.63 - Step 4: Simplify right side
117,269.29x = 10,285,283,696.06 - Step 5: Solve for x
x = 10,285,283,696.06/117,269.29 - Step 6: Final answer
x = 87,706.54
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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.