Finding the Fourth Proportional to 125,634.74, 173,316.92 and 74,649.02
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Solution
The fourth proportional to 125,634.74, 173,316.92 and 74,649.02 is: 102,980.57
Step by Step Solution
- Step 1: Write the proportion equation
125,634.74 : 173,316.92 = 74,649.02 : x - Step 2: Convert to fraction form
125,634.74/173,316.92 = 74,649.02/x - Step 3: Cross multiply
125,634.74x = 173,316.92 × 74,649.02 - Step 4: Simplify right side
125,634.74x = 12,937,936,987.59 - Step 5: Solve for x
x = 12,937,936,987.59/125,634.74 - Step 6: Final answer
x = 102,980.57
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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.