Finding the Fourth Proportional to 152,975.12, 211,102.92 and 84,992.40
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Solution
The fourth proportional to 152,975.12, 211,102.92 and 84,992.40 is: 117,287.99
Step by Step Solution
- Step 1: Write the proportion equation
152,975.12 : 211,102.92 = 84,992.40 : x - Step 2: Convert to fraction form
152,975.12/211,102.92 = 84,992.40/x - Step 3: Cross multiply
152,975.12x = 211,102.92 × 84,992.40 - Step 4: Simplify right side
152,975.12x = 17,942,143,817.81 - Step 5: Solve for x
x = 17,942,143,817.81/152,975.12 - Step 6: Final answer
x = 117,287.99
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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.