Finding the Fourth Proportional to 107,412.80, 160,924.80 and 91,860.80
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Solution
The fourth proportional to 107,412.80, 160,924.80 and 91,860.80 is: 137,624.95
Step by Step Solution
- Step 1: Write the proportion equation
107,412.80 : 160,924.80 = 91,860.80 : x - Step 2: Convert to fraction form
107,412.80/160,924.80 = 91,860.80/x - Step 3: Cross multiply
107,412.80x = 160,924.80 × 91,860.80 - Step 4: Simplify right side
107,412.80x = 14,782,680,867.84 - Step 5: Solve for x
x = 14,782,680,867.84/107,412.80 - Step 6: Final answer
x = 137,624.95
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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.