Finding the Fourth Proportional to 103,708.09, 143,127.87 and 63,448.62
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Solution
The fourth proportional to 103,708.09, 143,127.87 and 63,448.62 is: 87,565.65
Step by Step Solution
- Step 1: Write the proportion equation
103,708.09 : 143,127.87 = 63,448.62 : x - Step 2: Convert to fraction form
103,708.09/143,127.87 = 63,448.62/x - Step 3: Cross multiply
103,708.09x = 143,127.87 × 63,448.62 - Step 4: Simplify right side
103,708.09x = 9,081,265,835.04 - Step 5: Solve for x
x = 9,081,265,835.04/103,708.09 - Step 6: Final answer
x = 87,565.65
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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.