Finding the Fourth Proportional to 115,893.99, 159,971.76 and 73,509.93
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Solution
The fourth proportional to 115,893.99, 159,971.76 and 73,509.93 is: 101,467.84
Step by Step Solution
- Step 1: Write the proportion equation
115,893.99 : 159,971.76 = 73,509.93 : x - Step 2: Convert to fraction form
115,893.99/159,971.76 = 73,509.93/x - Step 3: Cross multiply
115,893.99x = 159,971.76 × 73,509.93 - Step 4: Simplify right side
115,893.99x = 11,759,512,879.58 - Step 5: Solve for x
x = 11,759,512,879.58/115,893.99 - Step 6: Final answer
x = 101,467.84
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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.