Finding the Fourth Proportional to 104,111.62, 143,675.07 and 56,365.99
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Solution
The fourth proportional to 104,111.62, 143,675.07 and 56,365.99 is: 77,785.63
Step by Step Solution
- Step 1: Write the proportion equation
104,111.62 : 143,675.07 = 56,365.99 : x - Step 2: Convert to fraction form
104,111.62/143,675.07 = 56,365.99/x - Step 3: Cross multiply
104,111.62x = 143,675.07 × 56,365.99 - Step 4: Simplify right side
104,111.62x = 8,098,387,558.87 - Step 5: Solve for x
x = 8,098,387,558.87/104,111.62 - Step 6: Final answer
x = 77,785.63
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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.