Finding the Fourth Proportional to 112,023.24, 167,639.99 and 69,923.09
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Solution
The fourth proportional to 112,023.24, 167,639.99 and 69,923.09 is: 104,638.15
Step by Step Solution
- Step 1: Write the proportion equation
112,023.24 : 167,639.99 = 69,923.09 : x - Step 2: Convert to fraction form
112,023.24/167,639.99 = 69,923.09/x - Step 3: Cross multiply
112,023.24x = 167,639.99 × 69,923.09 - Step 4: Simplify right side
112,023.24x = 11,721,904,920.55 - Step 5: Solve for x
x = 11,721,904,920.55/112,023.24 - Step 6: Final answer
x = 104,638.15
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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.