Finding the Fourth Proportional to 97,918.75, 135,128.69 and 53,206.75
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Solution
The fourth proportional to 97,918.75, 135,128.69 and 53,206.75 is: 73,425.76
Step by Step Solution
- Step 1: Write the proportion equation
97,918.75 : 135,128.69 = 53,206.75 : x - Step 2: Convert to fraction form
97,918.75/135,128.69 = 53,206.75/x - Step 3: Cross multiply
97,918.75x = 135,128.69 × 53,206.75 - Step 4: Simplify right side
97,918.75x = 7,189,758,160.62 - Step 5: Solve for x
x = 7,189,758,160.62/97,918.75 - Step 6: Final answer
x = 73,425.76
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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.