Finding the Fourth Proportional to 134,779.95, 201,294.52 and 126,731.79
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Solution
The fourth proportional to 134,779.95, 201,294.52 and 126,731.79 is: 189,274.55
Step by Step Solution
- Step 1: Write the proportion equation
134,779.95 : 201,294.52 = 126,731.79 : x - Step 2: Convert to fraction form
134,779.95/201,294.52 = 126,731.79/x - Step 3: Cross multiply
134,779.95x = 201,294.52 × 126,731.79 - Step 4: Simplify right side
134,779.95x = 25,510,414,519.96 - Step 5: Solve for x
x = 25,510,414,519.96/134,779.95 - Step 6: Final answer
x = 189,274.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.