Finding the Fourth Proportional to 143,153.69, 214,663.07 and 53,134.02
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Solution
The fourth proportional to 143,153.69, 214,663.07 and 53,134.02 is: 79,675.99
Step by Step Solution
- Step 1: Write the proportion equation
143,153.69 : 214,663.07 = 53,134.02 : x - Step 2: Convert to fraction form
143,153.69/214,663.07 = 53,134.02/x - Step 3: Cross multiply
143,153.69x = 214,663.07 × 53,134.02 - Step 4: Simplify right side
143,153.69x = 11,405,911,987.48 - Step 5: Solve for x
x = 11,405,911,987.48/143,153.69 - Step 6: Final answer
x = 79,675.99
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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.