Finding the Fourth Proportional to 159,325.74, 219,867.75 and 87,704.19
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Solution
The fourth proportional to 159,325.74, 219,867.75 and 87,704.19 is: 121,030.81
Step by Step Solution
- Step 1: Write the proportion equation
159,325.74 : 219,867.75 = 87,704.19 : x - Step 2: Convert to fraction form
159,325.74/219,867.75 = 87,704.19/x - Step 3: Cross multiply
159,325.74x = 219,867.75 × 87,704.19 - Step 4: Simplify right side
159,325.74x = 19,283,322,920.87 - Step 5: Solve for x
x = 19,283,322,920.87/159,325.74 - Step 6: Final answer
x = 121,030.81
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1.5x scale
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.