Finding the Fourth Proportional to 126,703.44, 174,774.51 and 83,683.26
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Solution
The fourth proportional to 126,703.44, 174,774.51 and 83,683.26 is: 115,432.55
Step by Step Solution
- Step 1: Write the proportion equation
126,703.44 : 174,774.51 = 83,683.26 : x - Step 2: Convert to fraction form
126,703.44/174,774.51 = 83,683.26/x - Step 3: Cross multiply
126,703.44x = 174,774.51 × 83,683.26 - Step 4: Simplify right side
126,703.44x = 14,625,700,761.70 - Step 5: Solve for x
x = 14,625,700,761.70/126,703.44 - Step 6: Final answer
x = 115,432.55
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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.