Finding the Fourth Proportional to 121,312.26, 181,881.36 and 46,369.23
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Solution
The fourth proportional to 121,312.26, 181,881.36 and 46,369.23 is: 69,520.59
Step by Step Solution
- Step 1: Write the proportion equation
121,312.26 : 181,881.36 = 46,369.23 : x - Step 2: Convert to fraction form
121,312.26/181,881.36 = 46,369.23/x - Step 3: Cross multiply
121,312.26x = 181,881.36 × 46,369.23 - Step 4: Simplify right side
121,312.26x = 8,433,699,336.71 - Step 5: Solve for x
x = 8,433,699,336.71/121,312.26 - Step 6: Final answer
x = 69,520.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.