Finding the Fourth Proportional to 104,151.74, 143,728.65 and 56,403.98
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Solution
The fourth proportional to 104,151.74, 143,728.65 and 56,403.98 is: 77,837.09
Step by Step Solution
- Step 1: Write the proportion equation
104,151.74 : 143,728.65 = 56,403.98 : x - Step 2: Convert to fraction form
104,151.74/143,728.65 = 56,403.98/x - Step 3: Cross multiply
104,151.74x = 143,728.65 × 56,403.98 - Step 4: Simplify right side
104,151.74x = 8,106,867,900.03 - Step 5: Solve for x
x = 8,106,867,900.03/104,151.74 - Step 6: Final answer
x = 77,837.09
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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.