Finding the Fourth Proportional to 157,675.84, 217,584.96 and 86,054.08
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Solution
The fourth proportional to 157,675.84, 217,584.96 and 86,054.08 is: 118,750.43
Step by Step Solution
- Step 1: Write the proportion equation
157,675.84 : 217,584.96 = 86,054.08 : x - Step 2: Convert to fraction form
157,675.84/217,584.96 = 86,054.08/x - Step 3: Cross multiply
157,675.84x = 217,584.96 × 86,054.08 - Step 4: Simplify right side
157,675.84x = 18,724,073,554.64 - Step 5: Solve for x
x = 18,724,073,554.64/157,675.84 - Step 6: Final answer
x = 118,750.43
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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.