Finding the Fourth Proportional to 145,902.63, 201,345.57 and 78,834.63
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Solution
The fourth proportional to 145,902.63, 201,345.57 and 78,834.63 is: 108,791.76
Step by Step Solution
- Step 1: Write the proportion equation
145,902.63 : 201,345.57 = 78,834.63 : x - Step 2: Convert to fraction form
145,902.63/201,345.57 = 78,834.63/x - Step 3: Cross multiply
145,902.63x = 201,345.57 × 78,834.63 - Step 4: Simplify right side
145,902.63x = 15,873,003,513.09 - Step 5: Solve for x
x = 15,873,003,513.09/145,902.63 - Step 6: Final answer
x = 108,791.76
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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.