Finding the Fourth Proportional to 145,790.56, 201,122.19 and 85,323.76
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Solution
The fourth proportional to 145,790.56, 201,122.19 and 85,323.76 is: 117,706.53
Step by Step Solution
- Step 1: Write the proportion equation
145,790.56 : 201,122.19 = 85,323.76 : x - Step 2: Convert to fraction form
145,790.56/201,122.19 = 85,323.76/x - Step 3: Cross multiply
145,790.56x = 201,122.19 × 85,323.76 - Step 4: Simplify right side
145,790.56x = 17,160,501,470.23 - Step 5: Solve for x
x = 17,160,501,470.23/145,790.56 - Step 6: Final answer
x = 117,706.53
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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.