Finding the Fourth Proportional to 125,445.84, 173,120.50 and 71,730.84
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Solution
The fourth proportional to 125,445.84, 173,120.50 and 71,730.84 is: 98,991.56
Step by Step Solution
- Step 1: Write the proportion equation
125,445.84 : 173,120.50 = 71,730.84 : x - Step 2: Convert to fraction form
125,445.84/173,120.50 = 71,730.84/x - Step 3: Cross multiply
125,445.84x = 173,120.50 × 71,730.84 - Step 4: Simplify right side
125,445.84x = 12,418,078,886.22 - Step 5: Solve for x
x = 12,418,078,886.22/125,445.84 - Step 6: Final answer
x = 98,991.56
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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.