Finding the Fourth Proportional to 117,258.36, 161,815.91 and 63,542.00
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Solution
The fourth proportional to 117,258.36, 161,815.91 and 63,542.00 is: 87,687.61
Step by Step Solution
- Step 1: Write the proportion equation
117,258.36 : 161,815.91 = 63,542.00 : x - Step 2: Convert to fraction form
117,258.36/161,815.91 = 63,542.00/x - Step 3: Cross multiply
117,258.36x = 161,815.91 × 63,542.00 - Step 4: Simplify right side
117,258.36x = 10,282,105,426.43 - Step 5: Solve for x
x = 10,282,105,426.43/117,258.36 - Step 6: Final answer
x = 87,687.61
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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.