Finding the Fourth Proportional to 158,813.36, 219,162.86 and 87,198.02
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Solution
The fourth proportional to 158,813.36, 219,162.86 and 87,198.02 is: 120,333.50
Step by Step Solution
- Step 1: Write the proportion equation
158,813.36 : 219,162.86 = 87,198.02 : x - Step 2: Convert to fraction form
158,813.36/219,162.86 = 87,198.02/x - Step 3: Cross multiply
158,813.36x = 219,162.86 × 87,198.02 - Step 4: Simplify right side
158,813.36x = 19,110,567,557.08 - Step 5: Solve for x
x = 19,110,567,557.08/158,813.36 - Step 6: Final answer
x = 120,333.50
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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.