Finding the Fourth Proportional to 104,188.81, 143,686.07 and 68,365.21
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Solution
The fourth proportional to 104,188.81, 143,686.07 and 68,365.21 is: 94,281.99
Step by Step Solution
- Step 1: Write the proportion equation
104,188.81 : 143,686.07 = 68,365.21 : x - Step 2: Convert to fraction form
104,188.81/143,686.07 = 68,365.21/x - Step 3: Cross multiply
104,188.81x = 143,686.07 × 68,365.21 - Step 4: Simplify right side
104,188.81x = 9,823,127,802.11 - Step 5: Solve for x
x = 9,823,127,802.11/104,188.81 - Step 6: Final answer
x = 94,281.99
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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.