Finding the Fourth Proportional to 125,415.81, 173,024.54 and 71,671.99
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Solution
The fourth proportional to 125,415.81, 173,024.54 and 71,671.99 is: 98,879.19
Step by Step Solution
- Step 1: Write the proportion equation
125,415.81 : 173,024.54 = 71,671.99 : x - Step 2: Convert to fraction form
125,415.81/173,024.54 = 71,671.99/x - Step 3: Cross multiply
125,415.81x = 173,024.54 × 71,671.99 - Step 4: Simplify right side
125,415.81x = 12,401,013,205.27 - Step 5: Solve for x
x = 12,401,013,205.27/125,415.81 - Step 6: Final answer
x = 98,879.19
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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.