Finding the Fourth Proportional to 131,726.67, 181,781.55 and 71,295.99
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Solution
The fourth proportional to 131,726.67, 181,781.55 and 71,295.99 is: 98,387.79
Step by Step Solution
- Step 1: Write the proportion equation
131,726.67 : 181,781.55 = 71,295.99 : x - Step 2: Convert to fraction form
131,726.67/181,781.55 = 71,295.99/x - Step 3: Cross multiply
131,726.67x = 181,781.55 × 71,295.99 - Step 4: Simplify right side
131,726.67x = 12,960,295,570.98 - Step 5: Solve for x
x = 12,960,295,570.98/131,726.67 - Step 6: Final answer
x = 98,387.79
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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.