Finding the Fourth Proportional to 145,845.60, 201,283.16 and 92,128.02
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Solution
The fourth proportional to 145,845.60, 201,283.16 and 92,128.02 is: 127,146.92
Step by Step Solution
- Step 1: Write the proportion equation
145,845.60 : 201,283.16 = 92,128.02 : x - Step 2: Convert to fraction form
145,845.60/201,283.16 = 92,128.02/x - Step 3: Cross multiply
145,845.60x = 201,283.16 × 92,128.02 - Step 4: Simplify right side
145,845.60x = 18,543,818,990.14 - Step 5: Solve for x
x = 18,543,818,990.14/145,845.60 - Step 6: Final answer
x = 127,146.92
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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.