Finding the Fourth Proportional to 133,605.81, 184,330.25 and 76,203.68
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Solution
The fourth proportional to 133,605.81, 184,330.25 and 76,203.68 is: 105,134.96
Step by Step Solution
- Step 1: Write the proportion equation
133,605.81 : 184,330.25 = 76,203.68 : x - Step 2: Convert to fraction form
133,605.81/184,330.25 = 76,203.68/x - Step 3: Cross multiply
133,605.81x = 184,330.25 × 76,203.68 - Step 4: Simplify right side
133,605.81x = 14,046,642,082.65 - Step 5: Solve for x
x = 14,046,642,082.65/133,605.81 - Step 6: Final answer
x = 105,134.96
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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.