Finding the Fourth Proportional to 147,799.79, 203,979.98 and 84,127.31
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Solution
The fourth proportional to 147,799.79, 203,979.98 and 84,127.31 is: 116,104.95
Step by Step Solution
- Step 1: Write the proportion equation
147,799.79 : 203,979.98 = 84,127.31 : x - Step 2: Convert to fraction form
147,799.79/203,979.98 = 84,127.31/x - Step 3: Cross multiply
147,799.79x = 203,979.98 × 84,127.31 - Step 4: Simplify right side
147,799.79x = 17,160,286,590.62 - Step 5: Solve for x
x = 17,160,286,590.62/147,799.79 - Step 6: Final answer
x = 116,104.95
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1.5x scale
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.