Finding the Fourth Proportional to 157,072.20, 235,608.30 and 97,285.09
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Solution
The fourth proportional to 157,072.20, 235,608.30 and 97,285.09 is: 145,927.64
Step by Step Solution
- Step 1: Write the proportion equation
157,072.20 : 235,608.30 = 97,285.09 : x - Step 2: Convert to fraction form
157,072.20/235,608.30 = 97,285.09/x - Step 3: Cross multiply
157,072.20x = 235,608.30 × 97,285.09 - Step 4: Simplify right side
157,072.20x = 22,921,174,670.25 - Step 5: Solve for x
x = 22,921,174,670.25/157,072.20 - Step 6: Final answer
x = 145,927.64
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1.5x scale
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.