Finding the Fourth Proportional to 135,195.08, 186,507.14 and 87,463.80
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Solution
The fourth proportional to 135,195.08, 186,507.14 and 87,463.80 is: 120,659.89
Step by Step Solution
- Step 1: Write the proportion equation
135,195.08 : 186,507.14 = 87,463.80 : x - Step 2: Convert to fraction form
135,195.08/186,507.14 = 87,463.80/x - Step 3: Cross multiply
135,195.08x = 186,507.14 × 87,463.80 - Step 4: Simplify right side
135,195.08x = 16,312,623,191.53 - Step 5: Solve for x
x = 16,312,623,191.53/135,195.08 - Step 6: Final answer
x = 120,659.89
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1.5x scale
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.