Finding the Fourth Proportional to 153,156.36, 211,357.62 and 86,086.92
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Solution
The fourth proportional to 153,156.36, 211,357.62 and 86,086.92 is: 118,800.99
Step by Step Solution
- Step 1: Write the proportion equation
153,156.36 : 211,357.62 = 86,086.92 : x - Step 2: Convert to fraction form
153,156.36/211,357.62 = 86,086.92/x - Step 3: Cross multiply
153,156.36x = 211,357.62 × 86,086.92 - Step 4: Simplify right side
153,156.36x = 18,195,126,524.33 - Step 5: Solve for x
x = 18,195,126,524.33/153,156.36 - Step 6: Final answer
x = 118,800.99
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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.