Finding the Fourth Proportional to 133,619.63, 184,389.68 and 79,934.31
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Solution
The fourth proportional to 133,619.63, 184,389.68 and 79,934.31 is: 110,306.12
Step by Step Solution
- Step 1: Write the proportion equation
133,619.63 : 184,389.68 = 79,934.31 : x - Step 2: Convert to fraction form
133,619.63/184,389.68 = 79,934.31/x - Step 3: Cross multiply
133,619.63x = 184,389.68 × 79,934.31 - Step 4: Simplify right side
133,619.63x = 14,739,062,041.76 - Step 5: Solve for x
x = 14,739,062,041.76/133,619.63 - Step 6: Final answer
x = 110,306.12
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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.