Finding the Fourth Proportional to 115,813.08, 173,745.12 and 65,916.66
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Solution
The fourth proportional to 115,813.08, 173,745.12 and 65,916.66 is: 98,889.50
Step by Step Solution
- Step 1: Write the proportion equation
115,813.08 : 173,745.12 = 65,916.66 : x - Step 2: Convert to fraction form
115,813.08/173,745.12 = 65,916.66/x - Step 3: Cross multiply
115,813.08x = 173,745.12 × 65,916.66 - Step 4: Simplify right side
115,813.08x = 11,452,698,001.70 - Step 5: Solve for x
x = 11,452,698,001.70/115,813.08 - Step 6: Final answer
x = 98,889.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.