Finding the Fourth Proportional to 133,051.68, 183,606.75 and 79,308.99
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Solution
The fourth proportional to 133,051.68, 183,606.75 and 79,308.99 is: 109,443.68
Step by Step Solution
- Step 1: Write the proportion equation
133,051.68 : 183,606.75 = 79,308.99 : x - Step 2: Convert to fraction form
133,051.68/183,606.75 = 79,308.99/x - Step 3: Cross multiply
133,051.68x = 183,606.75 × 79,308.99 - Step 4: Simplify right side
133,051.68x = 14,561,665,899.68 - Step 5: Solve for x
x = 14,561,665,899.68/133,051.68 - Step 6: Final answer
x = 109,443.68
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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.