Finding the Fourth Proportional to 118,144.41, 163,051.94 and 72,230.99
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Solution
The fourth proportional to 118,144.41, 163,051.94 and 72,230.99 is: 99,686.50
Step by Step Solution
- Step 1: Write the proportion equation
118,144.41 : 163,051.94 = 72,230.99 : x - Step 2: Convert to fraction form
118,144.41/163,051.94 = 72,230.99/x - Step 3: Cross multiply
118,144.41x = 163,051.94 × 72,230.99 - Step 4: Simplify right side
118,144.41x = 11,777,403,094.10 - Step 5: Solve for x
x = 11,777,403,094.10/118,144.41 - Step 6: Final answer
x = 99,686.50
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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.