Finding the Fourth Proportional to 159,643.68, 220,192.48 and 108,565.62
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Solution
The fourth proportional to 159,643.68, 220,192.48 and 108,565.62 is: 149,741.81
Step by Step Solution
- Step 1: Write the proportion equation
159,643.68 : 220,192.48 = 108,565.62 : x - Step 2: Convert to fraction form
159,643.68/220,192.48 = 108,565.62/x - Step 3: Cross multiply
159,643.68x = 220,192.48 × 108,565.62 - Step 4: Simplify right side
159,643.68x = 23,905,333,110.54 - Step 5: Solve for x
x = 23,905,333,110.54/159,643.68 - Step 6: Final answer
x = 149,741.81
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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.