Finding the Fourth Proportional to 157,112.11, 235,705.08 and 51,931.08
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Solution
The fourth proportional to 157,112.11, 235,705.08 and 51,931.08 is: 77,908.82
Step by Step Solution
- Step 1: Write the proportion equation
157,112.11 : 235,705.08 = 51,931.08 : x - Step 2: Convert to fraction form
157,112.11/235,705.08 = 51,931.08/x - Step 3: Cross multiply
157,112.11x = 235,705.08 × 51,931.08 - Step 4: Simplify right side
157,112.11x = 12,240,419,365.89 - Step 5: Solve for x
x = 12,240,419,365.89/157,112.11 - Step 6: Final answer
x = 77,908.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.