Finding the Fourth Proportional to 133,043.68, 183,595.71 and 79,300.99
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Solution
The fourth proportional to 133,043.68, 183,595.71 and 79,300.99 is: 109,432.64
Step by Step Solution
- Step 1: Write the proportion equation
133,043.68 : 183,595.71 = 79,300.99 : x - Step 2: Convert to fraction form
133,043.68/183,595.71 = 79,300.99/x - Step 3: Cross multiply
133,043.68x = 183,595.71 × 79,300.99 - Step 4: Simplify right side
133,043.68x = 14,559,321,562.75 - Step 5: Solve for x
x = 14,559,321,562.75/133,043.68 - Step 6: Final answer
x = 109,432.64
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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.