Finding the Fourth Proportional to 121,419.56, 182,129.36 and 94,810.52
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Solution
The fourth proportional to 121,419.56, 182,129.36 and 94,810.52 is: 142,215.80
Step by Step Solution
- Step 1: Write the proportion equation
121,419.56 : 182,129.36 = 94,810.52 : x - Step 2: Convert to fraction form
121,419.56/182,129.36 = 94,810.52/x - Step 3: Cross multiply
121,419.56x = 182,129.36 × 94,810.52 - Step 4: Simplify right side
121,419.56x = 17,267,779,328.87 - Step 5: Solve for x
x = 17,267,779,328.87/121,419.56 - Step 6: Final answer
x = 142,215.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.