Finding the Fourth Proportional to 70,755.18, 106,136.58 and 18,165.12
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Solution
The fourth proportional to 70,755.18, 106,136.58 and 18,165.12 is: 27,248.66
Step by Step Solution
- Step 1: Write the proportion equation
70,755.18 : 106,136.58 = 18,165.12 : x - Step 2: Convert to fraction form
70,755.18/106,136.58 = 18,165.12/x - Step 3: Cross multiply
70,755.18x = 106,136.58 × 18,165.12 - Step 4: Simplify right side
70,755.18x = 1,927,983,712.09 - Step 5: Solve for x
x = 1,927,983,712.09/70,755.18 - Step 6: Final answer
x = 27,248.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.