Finding the Fourth Proportional to 135,722.96, 187,298.16 and 75,294.80
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Solution
The fourth proportional to 135,722.96, 187,298.16 and 75,294.80 is: 103,907.09
Step by Step Solution
- Step 1: Write the proportion equation
135,722.96 : 187,298.16 = 75,294.80 : x - Step 2: Convert to fraction form
135,722.96/187,298.16 = 75,294.80/x - Step 3: Cross multiply
135,722.96x = 187,298.16 × 75,294.80 - Step 4: Simplify right side
135,722.96x = 14,102,577,497.57 - Step 5: Solve for x
x = 14,102,577,497.57/135,722.96 - Step 6: Final answer
x = 103,907.09
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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.