Finding the Fourth Proportional to 135,708.14, 187,154.55 and 84,725.53
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Solution
The fourth proportional to 135,708.14, 187,154.55 and 84,725.53 is: 116,844.63
Step by Step Solution
- Step 1: Write the proportion equation
135,708.14 : 187,154.55 = 84,725.53 : x - Step 2: Convert to fraction form
135,708.14/187,154.55 = 84,725.53/x - Step 3: Cross multiply
135,708.14x = 187,154.55 × 84,725.53 - Step 4: Simplify right side
135,708.14x = 15,856,767,972.78 - Step 5: Solve for x
x = 15,856,767,972.78/135,708.14 - Step 6: Final answer
x = 116,844.63
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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.