Finding the Fourth Proportional to 153,183.62, 211,307.13 and 91,913.96
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Solution
The fourth proportional to 153,183.62, 211,307.13 and 91,913.96 is: 126,789.50
Step by Step Solution
- Step 1: Write the proportion equation
153,183.62 : 211,307.13 = 91,913.96 : x - Step 2: Convert to fraction form
153,183.62/211,307.13 = 91,913.96/x - Step 3: Cross multiply
153,183.62x = 211,307.13 × 91,913.96 - Step 4: Simplify right side
153,183.62x = 19,422,075,622.80 - Step 5: Solve for x
x = 19,422,075,622.80/153,183.62 - Step 6: Final answer
x = 126,789.50
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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.