Finding the Fourth Proportional to 118,977.84, 164,189.43 and 65,262.99
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Solution
The fourth proportional to 118,977.84, 164,189.43 and 65,262.99 is: 90,062.93
Step by Step Solution
- Step 1: Write the proportion equation
118,977.84 : 164,189.43 = 65,262.99 : x - Step 2: Convert to fraction form
118,977.84/164,189.43 = 65,262.99/x - Step 3: Cross multiply
118,977.84x = 164,189.43 × 65,262.99 - Step 4: Simplify right side
118,977.84x = 10,715,493,128.20 - Step 5: Solve for x
x = 10,715,493,128.20/118,977.84 - Step 6: Final answer
x = 90,062.93
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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.