Finding the Fourth Proportional to 135,194.08, 186,505.76 and 87,462.80
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Solution
The fourth proportional to 135,194.08, 186,505.76 and 87,462.80 is: 120,658.51
Step by Step Solution
- Step 1: Write the proportion equation
135,194.08 : 186,505.76 = 87,462.80 : x - Step 2: Convert to fraction form
135,194.08/186,505.76 = 87,462.80/x - Step 3: Cross multiply
135,194.08x = 186,505.76 × 87,462.80 - Step 4: Simplify right side
135,194.08x = 16,312,315,985.73 - Step 5: Solve for x
x = 16,312,315,985.73/135,194.08 - Step 6: Final answer
x = 120,658.51
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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.