Finding the Fourth Proportional to 125,922.99, 173,810.37 and 100,605.63
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Solution
The fourth proportional to 125,922.99, 173,810.37 and 100,605.63 is: 138,865.05
Step by Step Solution
- Step 1: Write the proportion equation
125,922.99 : 173,810.37 = 100,605.63 : x - Step 2: Convert to fraction form
125,922.99/173,810.37 = 100,605.63/x - Step 3: Cross multiply
125,922.99x = 173,810.37 × 100,605.63 - Step 4: Simplify right side
125,922.99x = 17,486,301,774.38 - Step 5: Solve for x
x = 17,486,301,774.38/125,922.99 - Step 6: Final answer
x = 138,865.05
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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.