Finding the Fourth Proportional to 134,884.36, 186,035.16 and 86,490.88
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Solution
The fourth proportional to 134,884.36, 186,035.16 and 86,490.88 is: 119,289.92
Step by Step Solution
- Step 1: Write the proportion equation
134,884.36 : 186,035.16 = 86,490.88 : x - Step 2: Convert to fraction form
134,884.36/186,035.16 = 86,490.88/x - Step 3: Cross multiply
134,884.36x = 186,035.16 × 86,490.88 - Step 4: Simplify right side
134,884.36x = 16,090,344,699.34 - Step 5: Solve for x
x = 16,090,344,699.34/134,884.36 - Step 6: Final answer
x = 119,289.92
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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.