Finding the Fourth Proportional to 145,804.76, 201,214.80 and 85,369.75
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Solution
The fourth proportional to 145,804.76, 201,214.80 and 85,369.75 is: 117,812.73
Step by Step Solution
- Step 1: Write the proportion equation
145,804.76 : 201,214.80 = 85,369.75 : x - Step 2: Convert to fraction form
145,804.76/201,214.80 = 85,369.75/x - Step 3: Cross multiply
145,804.76x = 201,214.80 × 85,369.75 - Step 4: Simplify right side
145,804.76x = 17,177,656,669.26 - Step 5: Solve for x
x = 17,177,656,669.26/145,804.76 - Step 6: Final answer
x = 117,812.73
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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.