Finding the Fourth Proportional to 115,215.53, 173,445.73 and 103,628.99
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Solution
The fourth proportional to 115,215.53, 173,445.73 and 103,628.99 is: 156,003.33
Step by Step Solution
- Step 1: Write the proportion equation
115,215.53 : 173,445.73 = 103,628.99 : x - Step 2: Convert to fraction form
115,215.53/173,445.73 = 103,628.99/x - Step 3: Cross multiply
115,215.53x = 173,445.73 × 103,628.99 - Step 4: Simplify right side
115,215.53x = 17,974,005,994.25 - Step 5: Solve for x
x = 17,974,005,994.25/115,215.53 - Step 6: Final answer
x = 156,003.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.