Finding the Fourth Proportional to 153,342.48, 211,612.58 and 85,357.98
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Solution
The fourth proportional to 153,342.48, 211,612.58 and 85,357.98 is: 117,793.99
Step by Step Solution
- Step 1: Write the proportion equation
153,342.48 : 211,612.58 = 85,357.98 : x - Step 2: Convert to fraction form
153,342.48/211,612.58 = 85,357.98/x - Step 3: Cross multiply
153,342.48x = 211,612.58 × 85,357.98 - Step 4: Simplify right side
153,342.48x = 18,062,822,371.39 - Step 5: Solve for x
x = 18,062,822,371.39/153,342.48 - Step 6: Final answer
x = 117,793.99
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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.