Finding the Fourth Proportional to 103,995.23, 143,477.80 and 84,841.63
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Solution
The fourth proportional to 103,995.23, 143,477.80 and 84,841.63 is: 117,052.39
Step by Step Solution
- Step 1: Write the proportion equation
103,995.23 : 143,477.80 = 84,841.63 : x - Step 2: Convert to fraction form
103,995.23/143,477.80 = 84,841.63/x - Step 3: Cross multiply
103,995.23x = 143,477.80 × 84,841.63 - Step 4: Simplify right side
103,995.23x = 12,172,889,850.02 - Step 5: Solve for x
x = 12,172,889,850.02/103,995.23 - Step 6: Final answer
x = 117,052.39
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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.