Finding the Fourth Proportional to 153,940.95, 212,585.23 and 145,554.26
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Solution
The fourth proportional to 153,940.95, 212,585.23 and 145,554.26 is: 201,003.60
Step by Step Solution
- Step 1: Write the proportion equation
153,940.95 : 212,585.23 = 145,554.26 : x - Step 2: Convert to fraction form
153,940.95/212,585.23 = 145,554.26/x - Step 3: Cross multiply
153,940.95x = 212,585.23 × 145,554.26 - Step 4: Simplify right side
153,940.95x = 30,942,685,111.81 - Step 5: Solve for x
x = 30,942,685,111.81/153,940.95 - Step 6: Final answer
x = 201,003.60
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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.