Finding the Fourth Proportional to 155,982.98, 215,256.53 and 84,362.99
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Solution
The fourth proportional to 155,982.98, 215,256.53 and 84,362.99 is: 116,420.93
Step by Step Solution
- Step 1: Write the proportion equation
155,982.98 : 215,256.53 = 84,362.99 : x - Step 2: Convert to fraction form
155,982.98/215,256.53 = 84,362.99/x - Step 3: Cross multiply
155,982.98x = 215,256.53 × 84,362.99 - Step 4: Simplify right side
155,982.98x = 18,159,682,989.73 - Step 5: Solve for x
x = 18,159,682,989.73/155,982.98 - Step 6: Final answer
x = 116,420.93
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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.