Finding the Fourth Proportional to 125,829.64, 173,578.76 and 74,806.08
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Solution
The fourth proportional to 125,829.64, 173,578.76 and 74,806.08 is: 103,193.07
Step by Step Solution
- Step 1: Write the proportion equation
125,829.64 : 173,578.76 = 74,806.08 : x - Step 2: Convert to fraction form
125,829.64/173,578.76 = 74,806.08/x - Step 3: Cross multiply
125,829.64x = 173,578.76 × 74,806.08 - Step 4: Simplify right side
125,829.64x = 12,984,746,606.86 - Step 5: Solve for x
x = 12,984,746,606.86/125,829.64 - Step 6: Final answer
x = 103,193.07
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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.