Finding the Fourth Proportional to 135,706.66, 187,274.50 and 75,276.68
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Solution
The fourth proportional to 135,706.66, 187,274.50 and 75,276.68 is: 103,881.43
Step by Step Solution
- Step 1: Write the proportion equation
135,706.66 : 187,274.50 = 75,276.68 : x - Step 2: Convert to fraction form
135,706.66/187,274.50 = 75,276.68/x - Step 3: Cross multiply
135,706.66x = 187,274.50 × 75,276.68 - Step 4: Simplify right side
135,706.66x = 14,097,401,484.10 - Step 5: Solve for x
x = 14,097,401,484.10/135,706.66 - Step 6: Final answer
x = 103,881.43
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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.