Finding the Fourth Proportional to 125,433.68, 173,089.44 and 71,720.96
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Solution
The fourth proportional to 125,433.68, 173,089.44 and 71,720.96 is: 98,969.76
Step by Step Solution
- Step 1: Write the proportion equation
125,433.68 : 173,089.44 = 71,720.96 : x - Step 2: Convert to fraction form
125,433.68/173,089.44 = 71,720.96/x - Step 3: Cross multiply
125,433.68x = 173,089.44 × 71,720.96 - Step 4: Simplify right side
125,433.68x = 12,414,140,802.66 - Step 5: Solve for x
x = 12,414,140,802.66/125,433.68 - Step 6: Final answer
x = 98,969.76
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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.