Finding the Fourth Proportional to 125,386.05, 173,032.75 and 71,672.23
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Solution
The fourth proportional to 125,386.05, 173,032.75 and 71,672.23 is: 98,907.68
Step by Step Solution
- Step 1: Write the proportion equation
125,386.05 : 173,032.75 = 71,672.23 : x - Step 2: Convert to fraction form
125,386.05/173,032.75 = 71,672.23/x - Step 3: Cross multiply
125,386.05x = 173,032.75 × 71,672.23 - Step 4: Simplify right side
125,386.05x = 12,401,642,443.77 - Step 5: Solve for x
x = 12,401,642,443.77/125,386.05 - Step 6: Final answer
x = 98,907.68
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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.