Finding the Fourth Proportional to 134,873.80, 202,391.70 and 55,979.80
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Solution
The fourth proportional to 134,873.80, 202,391.70 and 55,979.80 is: 84,003.32
Step by Step Solution
- Step 1: Write the proportion equation
134,873.80 : 202,391.70 = 55,979.80 : x - Step 2: Convert to fraction form
134,873.80/202,391.70 = 55,979.80/x - Step 3: Cross multiply
134,873.80x = 202,391.70 × 55,979.80 - Step 4: Simplify right side
134,873.80x = 11,329,846,887.66 - Step 5: Solve for x
x = 11,329,846,887.66/134,873.80 - Step 6: Final answer
x = 84,003.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.