Finding the Fourth Proportional to 159,258.18, 219,785.36 and 91,286.46
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Solution
The fourth proportional to 159,258.18, 219,785.36 and 91,286.46 is: 125,980.51
Step by Step Solution
- Step 1: Write the proportion equation
159,258.18 : 219,785.36 = 91,286.46 : x - Step 2: Convert to fraction form
159,258.18/219,785.36 = 91,286.46/x - Step 3: Cross multiply
159,258.18x = 219,785.36 × 91,286.46 - Step 4: Simplify right side
159,258.18x = 20,063,427,474.23 - Step 5: Solve for x
x = 20,063,427,474.23/159,258.18 - Step 6: Final answer
x = 125,980.51
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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.