Finding the Fourth Proportional to 142,397.09, 213,206.55 and 102,455.99
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Solution
The fourth proportional to 142,397.09, 213,206.55 and 102,455.99 is: 153,404.03
Step by Step Solution
- Step 1: Write the proportion equation
142,397.09 : 213,206.55 = 102,455.99 : x - Step 2: Convert to fraction form
142,397.09/213,206.55 = 102,455.99/x - Step 3: Cross multiply
142,397.09x = 213,206.55 × 102,455.99 - Step 4: Simplify right side
142,397.09x = 21,844,287,504.02 - Step 5: Solve for x
x = 21,844,287,504.02/142,397.09 - Step 6: Final answer
x = 153,404.03
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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.