Finding the Fourth Proportional to 134,649.50, 185,807.90 and 74,220.62
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Solution
The fourth proportional to 134,649.50, 185,807.90 and 74,220.62 is: 102,419.82
Step by Step Solution
- Step 1: Write the proportion equation
134,649.50 : 185,807.90 = 74,220.62 : x - Step 2: Convert to fraction form
134,649.50/185,807.90 = 74,220.62/x - Step 3: Cross multiply
134,649.50x = 185,807.90 × 74,220.62 - Step 4: Simplify right side
134,649.50x = 13,790,777,538.90 - Step 5: Solve for x
x = 13,790,777,538.90/134,649.50 - Step 6: Final answer
x = 102,419.82
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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.