Finding the Fourth Proportional to 134,578.65, 201,677.55 and 74,633.49
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Solution
The fourth proportional to 134,578.65, 201,677.55 and 74,633.49 is: 111,844.63
Step by Step Solution
- Step 1: Write the proportion equation
134,578.65 : 201,677.55 = 74,633.49 : x - Step 2: Convert to fraction form
134,578.65/201,677.55 = 74,633.49/x - Step 3: Cross multiply
134,578.65x = 201,677.55 × 74,633.49 - Step 4: Simplify right side
134,578.65x = 15,051,899,037.98 - Step 5: Solve for x
x = 15,051,899,037.98/134,578.65 - Step 6: Final answer
x = 111,844.63
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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.