Finding the Fourth Proportional to 125,921.07, 173,777.49 and 71,477.09
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Solution
The fourth proportional to 125,921.07, 173,777.49 and 71,477.09 is: 98,642.02
Step by Step Solution
- Step 1: Write the proportion equation
125,921.07 : 173,777.49 = 71,477.09 : x - Step 2: Convert to fraction form
125,921.07/173,777.49 = 71,477.09/x - Step 3: Cross multiply
125,921.07x = 173,777.49 × 71,477.09 - Step 4: Simplify right side
125,921.07x = 12,421,108,423.82 - Step 5: Solve for x
x = 12,421,108,423.82/125,921.07 - Step 6: Final answer
x = 98,642.02
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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.