Finding the Fourth Proportional to 125,454.99, 173,161.07 and 77,681.19
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Solution
The fourth proportional to 125,454.99, 173,161.07 and 77,681.19 is: 107,220.59
Step by Step Solution
- Step 1: Write the proportion equation
125,454.99 : 173,161.07 = 77,681.19 : x - Step 2: Convert to fraction form
125,454.99/173,161.07 = 77,681.19/x - Step 3: Cross multiply
125,454.99x = 173,161.07 × 77,681.19 - Step 4: Simplify right side
125,454.99x = 13,451,357,979.27 - Step 5: Solve for x
x = 13,451,357,979.27/125,454.99 - Step 6: Final answer
x = 107,220.59
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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.