Finding the Fourth Proportional to 126,402.66, 174,420.75 and 69,810.66
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Solution
The fourth proportional to 126,402.66, 174,420.75 and 69,810.66 is: 96,330.47
Step by Step Solution
- Step 1: Write the proportion equation
126,402.66 : 174,420.75 = 69,810.66 : x - Step 2: Convert to fraction form
126,402.66/174,420.75 = 69,810.66/x - Step 3: Cross multiply
126,402.66x = 174,420.75 × 69,810.66 - Step 4: Simplify right side
126,402.66x = 12,176,427,675.20 - Step 5: Solve for x
x = 12,176,427,675.20/126,402.66 - Step 6: Final answer
x = 96,330.47
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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.