Finding the Fourth Proportional to 133,231.48, 183,772.38 and 85,409.08
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Solution
The fourth proportional to 133,231.48, 183,772.38 and 85,409.08 is: 117,808.72
Step by Step Solution
- Step 1: Write the proportion equation
133,231.48 : 183,772.38 = 85,409.08 : x - Step 2: Convert to fraction form
133,231.48/183,772.38 = 85,409.08/x - Step 3: Cross multiply
133,231.48x = 183,772.38 × 85,409.08 - Step 4: Simplify right side
133,231.48x = 15,695,829,905.21 - Step 5: Solve for x
x = 15,695,829,905.21/133,231.48 - Step 6: Final answer
x = 117,808.72
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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.