Finding the Fourth Proportional to 159,783.74, 220,502.74 and 88,166.42
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Solution
The fourth proportional to 159,783.74, 220,502.74 and 88,166.42 is: 121,670.31
Step by Step Solution
- Step 1: Write the proportion equation
159,783.74 : 220,502.74 = 88,166.42 : x - Step 2: Convert to fraction form
159,783.74/220,502.74 = 88,166.42/x - Step 3: Cross multiply
159,783.74x = 220,502.74 × 88,166.42 - Step 4: Simplify right side
159,783.74x = 19,440,937,185.99 - Step 5: Solve for x
x = 19,440,937,185.99/159,783.74 - Step 6: Final answer
x = 121,670.31
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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.