Finding the Fourth Proportional to 153,329.42, 211,594.58 and 85,344.93
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Solution
The fourth proportional to 153,329.42, 211,594.58 and 85,344.93 is: 117,775.99
Step by Step Solution
- Step 1: Write the proportion equation
153,329.42 : 211,594.58 = 85,344.93 : x - Step 2: Convert to fraction form
153,329.42/211,594.58 = 85,344.93/x - Step 3: Cross multiply
153,329.42x = 211,594.58 × 85,344.93 - Step 4: Simplify right side
153,329.42x = 18,058,524,191.75 - Step 5: Solve for x
x = 18,058,524,191.75/153,329.42 - Step 6: Final answer
x = 117,775.99
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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.