Finding the Fourth Proportional to 104,261.13, 143,867.47 and 74,035.44
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Solution
The fourth proportional to 104,261.13, 143,867.47 and 74,035.44 is: 102,159.75
Step by Step Solution
- Step 1: Write the proportion equation
104,261.13 : 143,867.47 = 74,035.44 : x - Step 2: Convert to fraction form
104,261.13/143,867.47 = 74,035.44/x - Step 3: Cross multiply
104,261.13x = 143,867.47 × 74,035.44 - Step 4: Simplify right side
104,261.13x = 10,651,291,443.14 - Step 5: Solve for x
x = 10,651,291,443.14/104,261.13 - Step 6: Final answer
x = 102,159.75
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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.