Finding the Fourth Proportional to 125,893.08, 173,727.36 and 72,140.76
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Solution
The fourth proportional to 125,893.08, 173,727.36 and 72,140.76 is: 99,551.33
Step by Step Solution
- Step 1: Write the proportion equation
125,893.08 : 173,727.36 = 72,140.76 : x - Step 2: Convert to fraction form
125,893.08/173,727.36 = 72,140.76/x - Step 3: Cross multiply
125,893.08x = 173,727.36 × 72,140.76 - Step 4: Simplify right side
125,893.08x = 12,532,823,783.19 - Step 5: Solve for x
x = 12,532,823,783.19/125,893.08 - Step 6: Final answer
x = 99,551.33
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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.